Navy Ohio Replacement (SSBN[X]) Ballistic
Missile Submarine Program: Background and
Issues for Congress

Ronald O'Rourke
Specialist in Naval Affairs
July 18, 2014
Congressional Research Service
7-5700
www.crs.gov
R41129


Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Summary
The Navy’s proposed FY2015 budget requests $1,219.3 million for continued research and
development work on the Ohio replacement program (ORP), a program to design and build a new
class of 12 ballistic missile submarines (SSBNs) to replace the Navy’s current force of 14 Ohio-
class SSBNs. The Ohio replacement program is also known as the SSBN(X) program. The Navy
has identified the Ohio replacement program as its top priority program.
Under the Navy’s FY2012 budget, the first Ohio replacement boat was scheduled to be procured
in FY2019, and Ohio replacement boats were to enter service on a schedule that would maintain
the Navy’s SSBN force at 12 boats. The Navy’s FY2013 budget deferred the procurement of the
first Ohio replacement boat by two years, to FY2021. As a result of the deferment of the
procurement of the lead boat from FY2019 to FY2021, the Navy’s SSBN force will drop to 11 or
10 boats for the period FY2029-FY2041. The Navy says the decline to 11 or 10 boats during this
period will be acceptable in terms of meeting strategic nuclear deterrent mission requirements
because none of the 11 or 10 boats during that period will be encumbered by lengthy maintenance
actions.
The Navy in June 2014 estimated the procurement cost of the lead ship in the program at $12.4
billion in constant 2014 dollars, including $4.8 billion in detailed design and nonrecurring
engineering (DD/NRE) costs for the entire class, and $7.6 billion in construction costs for the
ship itself. The Navy in April 2014 estimated the average procurement cost of boats 2 through 12
in the Ohio replacement program at about $5.36 billion each in FY2010 dollars, and is working to
reduce that figure to a target of $4.9 billion each in FY2010 dollars. Even with this cost-reduction
effort, observers are concerned about the impact the Ohio replacement program will have on the
Navy’s ability to procure other types of ships at desired rates in the 2020s and early 2030s.
Potential oversight issues for Congress for the Ohio replacement program include the following:
• the possibility that the program might experience a six-month delay due to a
shortfall in FY2014 funding for manufacturing the lead ship’s reactor core;
• the likelihood that the Navy will be able to reduce the average procurement cost
of boats 2-12 in the program to the target figure of $4.9 billion each in FY2010
dollars;
• the accuracy of the Navy’s estimate of the procurement cost of each SSBN(X);
• the prospective affordability of the Ohio replacement program and its potential
impact on funding available for other Navy shipbuilding programs; and
• the question of which shipyard or shipyards will build SSBN(X)s.
This report focuses on the Ohio replacement program as a Navy shipbuilding program. CRS
Report RL33640, U.S. Strategic Nuclear Forces: Background, Developments, and Issues, by Amy
F. Woolf, discusses the SSBN(X) as an element of future U.S. strategic nuclear forces in the
context of strategic nuclear arms control agreements.
Congressional Research Service

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Contents
Introduction ...................................................................................................................................... 1
Background ...................................................................................................................................... 1
U.S. Navy SSBNs in General .................................................................................................... 1
Mission of SSBNs ............................................................................................................... 1
Current Ohio-Class SSBNs ................................................................................................. 2
Summary of U.S. SSBN Designs ........................................................................................ 4
U.S.-UK Cooperation on SLBMs and the New UK SSBN ................................................. 6
Ohio Replacement Program....................................................................................................... 8
Program Origin and Early Milestones ................................................................................. 8
Planned Procurement Quantity: 12 SSBN(X)s to Replace 14 Ohio-Class Boats .............. 10
Procurement and Replacement Schedule .......................................................................... 10
SSBN(X) Design Features ................................................................................................ 12
Acquisition Cost ................................................................................................................ 14
Operation and Support (O&S) Cost .................................................................................. 15
Common Missile Compartment (CMC) ............................................................................ 15
Program Funding ............................................................................................................... 16
Issues for Congress ........................................................................................................................ 17
FY2014 Funding Shortfall for Designing Nuclear Fuel Core ................................................. 17
Likelihood That Navy Will Reach $4.9 Billion Target Cost .................................................... 18
Accuracy of Navy’s Estimated Unit Procurement Cost .......................................................... 20
Overview ........................................................................................................................... 20
October 2013 CBO Report ................................................................................................ 21
Program Affordability and Impact on Other Navy Shipbuilding Programs ............................ 22
Overview ........................................................................................................................... 22
September 2013 Navy Testimony ..................................................................................... 23
Some Options for Addressing the Issue ............................................................................ 24
Construction Shipyard(s) ......................................................................................................... 34
Legislative Activity for FY2015 .................................................................................................... 36
FY2015 Funding Request ........................................................................................................ 36
FY2015 National Defense Authorization Act (H.R. 4435) ...................................................... 36
House ................................................................................................................................. 36
Senate ................................................................................................................................ 39
FY2015 DOD Appropriations Act (H.R. 4870) ....................................................................... 41
House ................................................................................................................................. 41

Figures
Figure 1. Ohio (SSBN-726) Class SSBN ........................................................................................ 4

Tables
Table 1. U.S. SSBN Classes ............................................................................................................ 5
Table 2. Navy Schedule for Procuring SSBN(X)s and Replacing Ohio-Class SSBNs ................. 12
Congressional Research Service

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Table 3. Ohio Replacement Program Funding ............................................................................... 16
Table 4. Navy SSBN(X) Procurement Schedule and a Notional Alternative Schedule ................. 26
Table 5. Construction Shipyards of U.S. SSBNs ........................................................................... 34

Appendixes
Appendix A. June 2013 Navy Blog Post Regarding Ohio Replacement Options ......................... 42
Appendix B. Earlier Oversight Issue: A Design with 16 vs. 20 SLBM Tubes .............................. 44

Contacts
Author Contact Information........................................................................................................... 50

Congressional Research Service

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Introduction
This report provides background information and potential oversight issues for Congress on the
Ohio replacement program (ORP), a program to design and build a new class of 12 ballistic
missile submarines (SSBNs) to replace the Navy’s current force of 14 Ohio-class SSBNs. The
Ohio replacement program is also known as the SSBN(X) program. The Navy has identified the
Ohio replacement program as its top priority program.
The Navy’s proposed FY2015 budget requested $1,219.3 million for continued research and
development work on the Ohio replacement program. Decisions that Congress makes on the Ohio
replacement program could substantially affect U.S. military capabilities and funding
requirements, and the U.S. shipbuilding industrial base.
This report focuses on the Ohio replacement program as a Navy shipbuilding program. Another
CRS report discusses the SSBN(X) as an element of future U.S. strategic nuclear forces in the
context of strategic nuclear arms control agreements.1
Background
U.S. Navy SSBNs in General
Mission of SSBNs
The U.S. Navy operates three kinds of submarines—nuclear-powered attack submarines (SSNs),
nuclear-powered cruise missile submarines (SSGNs), and nuclear-powered ballistic missile
submarines (SSBNs).2 The SSNs and SSGNs are multi-mission ships that perform a variety of
peacetime and wartime missions.3 They do not carry nuclear weapons.4

1 CRS Report RL33640, U.S. Strategic Nuclear Forces: Background, Developments, and Issues, by Amy F. Woolf.
2 In the designations SSN, SSGN, SSBN, and SSBN(X), the SS stands for submarine, N stands for nuclear-powered
(meaning the ship is powered by a nuclear reactor), G stands for guided missile (such as a cruise missile), B stands for
ballistic missile, and (X) means the design of the ship has not yet been determined.
As shown by the “Ns” in SSN, SSGN, and SSBN, all U.S. Navy submarines are nuclear-powered. Other navies operate
non-nuclear powered submarines, which are powered by energy sources such as diesel engines. A submarine’s use of
nuclear or non-nuclear power as its energy source is not an indication of whether it is armed with nuclear weapons—a
nuclear-powered submarine can lack nuclear weapons, and a non-nuclear-powered submarine can be armed with
nuclear weapons.
3 These missions include covert intelligence, surveillance, and reconnaissance (ISR), much of it done for national-level
(as opposed to purely Navy) purposes; covert insertion and recovery of special operations forces (SOF); covert strikes
against land targets with the Tomahawk cruise missiles; covert offensive and defensive mine warfare; anti-submarine
warfare (ASW); and anti-surface ship warfare. The Navy’s four SSGNs, which are converted former SSBNs, can carry
larger numbers of Tomahawks and SOF personnel than can the SSNs. SSGN operations consequently may focus more
strongly on Tomahawk and SOF missions than do SSN operations. For more on the Navy’s SSNs and SSGNs, see CRS
Report RL32418, Navy Virginia (SSN-774) Class Attack Submarine Procurement: Background and Issues for
Congress
, by Ronald O'Rourke, and CRS Report RS21007, Navy Trident Submarine Conversion (SSGN) Program:
Background and Issues for Congress
, by Ronald O'Rourke.
4 The Navy’s non-strategic nuclear weapons—meaning all of the service’s nuclear weapons other than submarine-
launched ballistic missiles (SLBMs)—were removed from Navy surface ships and submarines under a unilateral U.S.
(continued...)
Congressional Research Service
1

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

The SSBNs, in contrast, perform a specialized mission of strategic nuclear deterrence. To perform
this mission, SSBNs are armed with submarine-launched ballistic missiles (SLBMs), which are
large, long-range missiles armed with multiple nuclear warheads. SSBNs launch their SLBMs
from large-diameter vertical launch tubes located in the middle section of the boat.5 The SSBNs’
basic mission is to remain hidden at sea with their SLBMs, so as to deter a nuclear attack on the
United States by another country by demonstrating to other countries that the United States has an
assured second-strike capability, meaning a survivable system for carrying out a retaliatory
nuclear attack.
Navy SSBNs, which are sometimes referred to informally as “boomers,”6 form one leg of the
U.S. strategic nuclear deterrent force, or “triad,” which also includes land-based intercontinental
ballistic missiles (ICBMs) and land-based long-range bombers. At any given moment, some of
the Navy’s SSBNs are conducting nuclear deterrent patrols. The Navy’s report on its FY2011 30-
year shipbuilding plan states: “These ships are the most survivable leg of the Nation’s strategic
arsenal and provide the Nation’s only day-to-day assured nuclear response capability.”7 The
Department of Defense’s (DOD’s) report on the 2010 Nuclear Posture Review (NPR), released on
April 6, 2010, states that “strategic nuclear submarines (SSBNs) and the SLBMs they carry
represent the most survivable leg of the U.S. nuclear Triad.”8
Current Ohio-Class SSBNs
The Navy currently operates 14 Ohio (SSBN-726) class SSBNs. The boats are commonly called
Trident SSBNs or simply Tridents because they carry Trident SLBMs.
A total of 18 Ohio-class SSBNs were procured in FY1974-FY1991. The ships entered service in
1981-1997. The boats were designed and built by General Dynamics’ Electric Boat Division
(GD/EB) of Groton, CT, and Quonset Point, RI. They were originally designed for 30-year
service lives but were later certified for 42-year service lives, consisting of two approximately 19-
year periods of operation separated by an approximately four-year mid-life nuclear refueling
overhaul, called an engineered refueling overhaul (ERO). The nuclear refueling overhaul includes
both a nuclear refueling and overhaul work on the ship that is not related to the nuclear refueling.

(...continued)
nuclear initiative announced by President George H. W. Bush in September 1991. The initiative reserved a right to
rearm SSNs at some point in the future with nuclear-armed Tomahawk land attack missiles (TLAM-Ns) should
conditions warrant. Navy TLAM-Ns were placed in storage to support this option. DOD’s report on the 2010 Nuclear
Posture Review (NPR), released on April 6, 2010, states that the United States will retire the TLAM-Ns. (Department
of Defense, Nuclear Posture Review Report, April 2010, pp. xiii and 28.)
5 SSBNs, like other Navy submarines, are also equipped with horizontal torpedo tubes in the bow for firing torpedoes
or other torpedo-sized weapons.
6 This informal name is a reference to the large boom that would be made by the detonation of an SLBM nuclear
warhead.
7 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY 2011, February
2010, p. 15.
8 Department of Defense, Nuclear Posture Review Report, April 2010, p. 22. The next sentence in the report states:
“Today, there appears to be no viable near or mid-term threats to the survivability of U.S. SSBNs, but such threats—or
other technical problems—cannot be ruled out over the long term.” The report similarly states on page 23: “Today,
there appears to be no credible near or mid-term threats to the survivability of U.S. SSBNs. However, given the stakes
involved, the Department of Defense will continue a robust SSBN Security Program that aims to anticipate potential
threats and develop appropriate countermeasures to protect current and future SSBNs.”
Congressional Research Service
2

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Ohio-class SSBNs are designed to each carry 24 SLBMs, although by 2018, four SLBM launch
tubes on each boat are to be deactivated, and the number of SLBMs that can be carried by each
boat consequently is to be reduced to 20, so that the number of operational launchers and
warheads in the U.S. force will comply with strategic nuclear arms control limits.
The first eight boats in the class were originally armed with Trident I C-4 SLBMs; the final 10
were armed with larger and more-capable Trident II D-5 SLBMs. The Clinton Administration’s
1994 Nuclear Posture Review (NPR) recommended a strategic nuclear force for the START II
strategic nuclear arms reduction treaty that included 14 Ohio-class SSBNs, all armed with D-5s.
This recommendation prompted interest in the idea of converting the first four Ohio-class boats
(SSBNs 726-729) into SSGNs, so as to make good use of the 20 years of potential operational life
remaining in these four boats, and to bolster the U.S. SSN fleet. The first four Ohio-class boats
were converted into SSGNs in 2002-2008,9 and the next four (SSBNs 730-733) were backfitted
with D-5 SLBMs in 2000-2005, producing the current force of 14 Ohio-class SSBNs, all of which
are armed with D-5 SLBMs.
Eight of the 14 Ohio-class SSBNs are homeported at Bangor, WA, in Puget Sound; the other six
are homeported at Kings Bay, GA, close to the Florida border.
Unlike most Navy ships, which are operated by single crews, Navy SSBNs are operated by
alternating crews (called the Blue and Gold crews) so as to maximize the percentage of time that
they spend at sea in deployed status. The Navy consequently maintains 28 crews to operate its 14
Ohio-class SSBNs.
The first of the 14 Ohio-class SSBNs (SSBN-730) will reach the end of its 42-year service life in
2027. The remaining 13 will reach the ends of their service lives at a rate of roughly one ship per
year thereafter, with the 14th reaching the end of its service life in 2040.
The Navy has initiated a program to refurbish and extend the service lives of D-5 SLBMs to 2042
“to match the OHIO Class submarine service life.”10
Figure 1 shows an Ohio-class SSBN with the hatches to some of its SLBM launch tubes open.

9 For more on the SSGN conversion program, see CRS Report RS21007, Navy Trident Submarine Conversion (SSGN)
Program: Background and Issues for Congress
, by Ronald O'Rourke.
10 Statement of Rear Admiral Stephen Johnson, USN, Director, Strategic Systems Programs, Before the Subcommittee
on Strategic Forces of the Senate Armed Services Committee [on] FY2011 Strategic Systems, March 17, 2010, p. 4.
Congressional Research Service
3



Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Figure 1. Ohio (SSBN-726) Class SSBN
With the hatches to some of its SLBM launch tubes open

Source: U.S. Navy file photo accessed by CRS on February 24, 2011, at http://www.navy.mil/management/
photodb/photos/101029-N-1325N-005.jpg.
Summary of U.S. SSBN Designs
The Navy has operated four classes of SSBNs since 1959. Table 1 compares the current Ohio-
class SSBN design to the three earlier U.S. SSBN designs. As shown in the table, the size of U.S.
SSBNs has grown over time, reflecting in part a growth in the size and number of SLBMs carried
on each boat. The Ohio class carries an SLBM (the D-5) that is much larger than the SLBMs
carried by earlier U.S. SSBNs, and it carries 24 SLBMs, compared to the 16 on earlier U.S.
SSBNs.11 In part for these reasons, the Ohio-class design, with a submerged displacement of
18,750 tons, is more than twice the size of earlier U.S. SSBNs.

11 The larger size of the Ohio-class design also reflects a growth in size over time in U.S. submarine designs due to
other reasons, such as providing increased interior volume for measures to quiet the submarine acoustically, so as to
make it harder to detect.
Congressional Research Service
4

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Table 1. U.S. SSBN Classes
George
Lafayette/Benjamin
Washington
Ethan Allen
Franklin (SSBN-
Ohio (SSBN-726)

(SSBN-598) class
(SSBN-608) class
616/640) class
class
Number in class
5
5
31
18/14
Fiscal years
FY1958-FY1959
FY1959 and FY1961
FY1961-FY1964
FY1974/FY1977 -
procured
FY1991
Years in
1959-1985
1961-1992
1963-2002
1981/1984 - present
commission
Length
381.7 feet
410.5 feet
425 feet
560 feet
Beam
33 feet
33 feet
33 feet
42 feet
Submerged
6,700 tons
7,900 tons
8,250 tons
18,750 tons
displacement
Number of SLBM
16
16
16
24 (to be reduced to
launch tubes
20 by 2018)
Final type(s) of
Polaris A-3
Polaris A-3
Poseidon C-3/
Trident II D-5
SLBM carried
Trident I C-4
Diameter of those
54 inches
54 inches
74 inches
83 inches
SLBMs
Length of those
32.3 feet
32.3 feet
34 feet
44 feet
SLBMs
Weight of each
36,000 pounds
36,000 pounds
65,000/73,000 pounds
~130,000 pounds
SLBM (pounds)
Range of SLBMs
~2,500 nm
~2,500 nm
~2,500 nm/~4,000 nm
~4,000 nm
Sources: Prepared by CRS based on data in Norman Polmar, The Ships and Aircraft of the U.S. Fleet, Annapolis,
Naval Institute Press, various editions, and (for SSBN decommissioning dates) U.S. Naval Vessel Register.
Notes: Beam is the maximum width of a ship. For the submarines here, which have cylindrical hulls, beam is the
diameter of the hull.
The range of an SLBM can vary, depending on the number and weight of nuclear warheads it carries; actual
ranges can be lesser or greater than those shown.
The George Washington-class boats were procured as modifications of SSNs that were already under
construction. Three of the boats were converted into SSNs toward the ends of their lives and were
decommissioned in 1983-1985. The two boats that remained SSBNs throughout their lives were
decommissioned in 1981.
Al five Ethan Al en-class boats were converted into SSNs toward the ends of their lives. The boats were
decommissioned in 1983 (two boats), 1985, 1991, and 1992.
Two of the Lafayette/Benjamin Franklin-class boats were converted into SSNs toward the ends of their lives and
were decommissioned in 1999 and 2002. The 29 that remained SSBNs throughout their lives were
decommissioned in 1986-1995. For 19 of the boats, the Poseidon C-3 was the final type of SLBM carried; for the
other 12, the Trident I C-4 SLBM was the final type of SLBM carried.
A total of 18 Ohio-class SSBNs were built. The first four, which entered service in 1981-1984, were converted
into SSGNs in 2002-2008. The remaining 14 boats entered service in 1984-1997. Although Ohio-class SSBNs are
designed to each carry 24 SLBMs, by 2018, four SLBM launch tubes on each boat are to be deactivated, and the
number of SLBMs that can be carried by each boat consequently is to be reduced to 20, so that the number of
operational launchers and warheads in the U.S. force will comply with strategic nuclear arms control limits.
Congressional Research Service
5

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

U.S.-UK Cooperation on SLBMs and the New UK SSBN
SSBNs are also operated by the United Kingdom, France, Russia, China, and India. The UK’s
four Vanguard-class SSBNs, which entered service in 1993-1999, each carry 16 Trident II D-5
SLBMs. Previous classes of UK SSBNs similarly carried earlier-generation U.S. SLBMs.12 The
UK’s use of U.S.-made SLBMs on its SSBNs is one element of a long-standing close cooperation
between the two countries on nuclear-related issues that is carried out under the 1958 Agreement
for Cooperation on the Uses of Atomic Energy for Mutual Defense Purposes (also known as the
Mutual Defense Agreement). Within the framework established by the 1958 agreement,
cooperation on SLBMs in particular is carried out under the 1963 Polaris Sales Agreement and a
1982 Exchange of Letters between the two governments.13 The Navy testified in March 2010 that
“the United States and the United Kingdom have maintained a shared commitment to nuclear

12 Although the SLBMs on UK SSBNs are U.S.-made, the nuclear warheads on the missiles are of UK design and
manufacture.
13 A March 18, 2010, report by the UK Parliament’s House of Commons Foreign Affairs Committee stated:
During the Cold War, the UK’s nuclear co-operation with the United States was considered to be at
the heart of the [UK-U.S.] ‘special relationship’. This included the 1958 Mutual Defence
Agreement, the 1963 Polaris Sales Agreement (PSA) (subsequently amended for Trident), and the
UK’s use of the US nuclear test site in Nevada from 1962 to 1992. The co-operation also
encompassed agreements for the United States to use bases in Britain, with the right to store
nuclear weapons, and agreements for two bases in Yorkshire (Fylingdales and Menwith Hill) to be
upgraded to support US missile defence plans.
In 1958, the UK and US signed the Mutual Defence Agreement (MDA). Although some of the
appendices, amendments and Memoranda of Understanding remain classified, it is known that the
agreement provides for extensive co-operation on nuclear warhead and reactor technologies, in
particular the exchange of classified information concerning nuclear weapons to improve design,
development and fabrication capability. The agreement also provides for the transfer of nuclear
warhead-related materials. The agreement was renewed in 2004 for another ten years.
The other major UK-US agreement in this field is the 1963 Polaris Sales Agreement (PSA) which
allows the UK to acquire, support and operate the US Trident missile system. Originally signed to
allow the UK to acquire the Polaris Submarine Launched Ballistic Missile (SLBM) system in the
1960s, it was amended in 1980 to facilitate purchase of the Trident I (C4) missile and again in 1982
to authorise purchase of the more advanced Trident II (D5) in place of the C4. In return, the UK
agreed to formally assign its nuclear forces to the defence of NATO, except in an extreme national
emergency, under the terms of the 1962 Nassau Agreement reached between President John F.
Kennedy and Prime Minister Harold Macmillan to facilitate negotiation of the PSA.
Current nuclear co-operation takes the form of leasing arrangements of around 60 Trident II D5
missiles from the US for the UK’s independent deterrent, and long-standing collaboration on the
design of the W76 nuclear warhead carried on UK missiles. In 2006 it was revealed that the US and
the UK had been working jointly on a new ‘Reliable Replacement Warhead’ (RRW) that would
modernise existing W76-style designs. In 2009 it emerged that simulation testing at Aldermaston
on dual axis hydrodynamics experiments had provided the US with scientific data it did not
otherwise possess on this RRW programme.
The level of co-operation between the two countries on highly sensitive military technology is,
according to the written submission from Ian Kearns, “well above the norm, even for a close
alliance relationship”. He quoted Admiral William Crowe, the former US Ambassador to London,
who likened the UK-US nuclear relationship to that of an iceberg, “with a small tip of it sticking
out, but beneath the water there is quite a bit of everyday business that goes on between our two
governments in a fashion that’s unprecedented in the world.” Dr Kearns also commented that the
personal bonds between the US/UK scientific and technical establishments were deeply rooted.
(House of Commons, Foreign Affairs Committee, Sixth Report Global Security: UK-US Relations,
March 18, 2010, paragraphs 131-135; http://www.publications.parliament.uk/pa/cm200910/
cmselect/cmfaff/114/11402.htm; paragraphs 131-135 are included in the section of the report
available at http://www.publications.parliament.uk/pa/cm200910/cmselect/cmfaff/114/11406.htm.)
Congressional Research Service
6

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

deterrence through the Polaris Sales Agreement since April 1963. The U.S. will continue to
maintain its strong strategic relationship with the UK for our respective follow-on platforms,
based upon the Polaris Sales Agreement.”14
The first Vanguard-class SSBN was originally projected to reach the end of its service life in
2024, but an October 2010 UK defense and security review report states that the lives of the
Vanguard class ships will now be extended by a few years, so that the four boats will remain in
service into the late 2020s and early 2030s.15
The UK plans to replace the four Vanguard-class boats with three or four next-generation SSBNs
called Successor class SSBNs. The October 2010 UK defense and security review report states
that each new Successor class SSBN is to be equipped with 8 D-5 SLBMs, rather than 12 as
previously planned. The report states that “‘Initial Gate’—a decision to move ahead with early
stages of the work involved—will be approved and the next phase of the project will start by the
end of [2010]. ‘Main Gate’—the decision to start building the submarines—is required around
2016.”16 The first new boat is to be delivered by 2028, or about four years later than previously
planned.17
The UK has wanted the Successor SSBNs to carry D-5 SLBMs, and for any successor to the D-5
SLBM to be compatible with, or be capable of being made compatible with, the D-5 launch
system. President George W. Bush, in a December 2006 letter to UK Prime Minister Tony Blair,
invited the UK to participate in any program to replace the D-5 SLBMs, and stated that any
successor to the D-5 system should be compatible with, or be capable of being made compatible
with, the launch system for the D-5 SLBM.
The United States is assisting the UK with certain aspects of the Successor SSBN program. In
addition to the modular Common Missile Compartment (CMC) discussed below (see “Common
Missile Compartment (CMC)” in the following section on the Ohio replacement program), the
United States is assisting the UK with the new PWR-3 reactor plant18 to be used by the Successor
SSBN. A December 2011 press report states that “there has been strong [UK] collaboration with
the US [on the Successor program], particularly with regard to the CMC, the PWR, and other
propulsion technology,” and that the design concept selected for the Successor class employs “a
new propulsion plant based on a US design, but using next-generation UK reactor technology
(PWR-3) and modern secondary propulsion systems.”19 The U.S. Navy states that

14 Statement of Rear Admiral Stephen Johnson, USN, Director, Strategic Systems Programs, Before the Subcommittee
on Strategic Forces of the Senate Armed Services Committee [on] FY2011 Strategic Systems, March 17, 2010, p. 6.
15 Securing Britain in an Age of Uncertainty: The Strategic Defence and Security Review, Presented to Parliament by
the Prime Minister by Command of Her Majesty, October 2010, p. 39.
16 Securing Britain in an Age of Uncertainty: The Strategic Defence and Security Review, Presented to Parliament by
the Prime Minister by Command of Her Majesty, October 2010, p. 5, 38-39. For more on the UK’s Successor SSBN
program as it existed prior to the October 2010 UK defense and security review report, see Richard Scott, “Deterrence
At A Discount?” Jane’s Defence Weekly, December 23, 2009: 26-31.
17 Securing Britain in an Age of Uncertainty: The Strategic Defence and Security Review, Presented to Parliament by
the Prime Minister by Command of Her Majesty, October 2010, p. 39.
18 PWR3 means pressurized water reactor, design number 3. U.S. and UK nuclear-powered submarines employ
pressurized water reactors. Earlier UK nuclear-powered submarines are powered by reactor designs that the UK
designated PWR-2 and PWR-1.
19 Sam LaGrone and Richard Scott, “Strategic Assets: Deterrent Plans Confront Cost Challenges,” Jane’s Navy
International
, December 2011: 17 and 18.
Congressional Research Service
7

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Naval Reactors, a joint Department of Energy/Department of Navy organization responsible
for all aspects of naval nuclear propulsion, has an ongoing technical exchange with the UK
Ministry of Defence under the US/UK 1958 Mutual Defence Agreement. The US/UK 1958
Mutual Defence Agreement is a Government to Government Atomic Energy Act agreement
that allows the exchange of naval nuclear propulsion technology between the US and UK.
Under this agreement, Naval Reactors is providing the UK Ministry of Defence with US
naval nuclear propulsion technology to facilitate development of the naval nuclear
propulsion plant for the UK’s next generation SUCCESSOR ballistic missile submarine. The
technology exchange is managed and led by the US and UK Governments, with participation
from Naval Reactors prime contractors, private nuclear capable shipbuilders, and several
suppliers. A UK based office comprised of about 40 US personnel provide full-time
engineering support for the exchange, with additional support from key US suppliers and
other US based program personnel as needed.
The relationship between the US and UK under the 1958 mutual defence agreement is an
ongoing relationship and the level of support varies depending on the nature of the support
being provided. Naval Reactors work supporting the SUCCESSOR submarine is reimbursed
by the UK Ministry of Defence.20
U.S. assistance to the UK on naval nuclear propulsion technology first occurred many years ago:
To help jumpstart the UK’s nuclear-powered submarine program, the United States transferred to
the UK a complete nuclear propulsion plant (plus technical data, spares, and training) of the kind
installed on the U.S. Navy’s six Skipjack (SSN-585) class nuclear-powered attack submarines
(SSNs), which entered service between 1959 and 1961. The plant was installed on the UK Navy’s
first nuclear-powered ship, the attack submarine Dreadnought, which entered service in 1963.
The December 2011 press report states that “the UK is also looking at other areas of cooperation
between Successor and the Ohio Replacement Programme. For example, a collaboration
agreement has been signed off regarding the platform integration of sonar arrays with the
respective combat systems.”21
Ohio Replacement Program
Program Origin and Early Milestones
Although the eventual need to replace the Ohio-class SSBNs has been known for many years, the
Ohio replacement program can be traced more specifically to an exchange of letters in December
2006 between President George W. Bush and UK Prime Minister Tony Blair concerning the UK’s
desire to participate in a program to extend the service life of the Trident II D-5 SLBM into the
2040s, and to have its next-generation SSBNs carry D-5s. Following this exchange of letters, and
with an awareness of the projected retirement dates of the Ohio-class SSBNs and the time that
would likely be needed to develop and field a replacement for them, DOD in 2007 began studies
on a next-generation sea-based strategic deterrent (SBSD).22 The studies used the term sea-based

20 Source: Email to CRS from Navy Office of Legislative Affairs, June 25, 2012.
21 Sam LaGrone and Richard Scott, “Strategic Assets: Deterrent Plans Confront Cost Challenges,” Jane’s Navy
International
, December 2011: 19.
22 In February 2007, the commander of U.S. Strategic Command (STRATCOM) commissioned a task force to support
an anticipated Underwater Launched Missile Study (ULMS). On June 8, 2007, the Secretary of the Navy initiated the
(continued...)
Congressional Research Service
8

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

strategic deterrent (SBSD) to signal the possibility that the new system would not necessarily be a
submarine.
An Initial Capabilities Document (ICD) for a new SBSD was developed in early 200823 and
approved by DOD’s Joint Requirements Oversight Committee (JROC) on June 20, 2008.24 In July
2008, DOD issued a Concept Decision providing guidance for an analysis of alternatives (AOA)
for the program; an acquisition decision memorandum from John Young, DOD’s acquisition
executive, stated the new system would, barring some discovery, be a submarine.25 The Navy
established an Ohio replacement program office at about this same time.26
The AOA reportedly began in the summer or fall of 2008.27 The AOA was completed, with final
brief to the Office of the Secretary of Defense (OSD), on May 20, 2009. The final AOA report
was completed in September 2009. An AOA Sufficiency Review Letter was signed by OSD’s
Director, Cost Assessment & Program Evaluation (CAPE) on December 8, 2009.28 The AOA
concluded that a new-design SSBN was the best option for replacing the Ohio-class SSBNs. (For
a June 26, 2013, Navy blog post discussing options that were examined for replacing the Ohio-
class SSBNs, see Appendix A.)
The program’s Milestone A review meeting was held on December 9, 2010. On February 3, 2011,
the Navy provided the following statement to CRS concerning the outcome of the December 9
meeting:
The OHIO Replacement Program achieved Milestone A and has been approved to enter the
Technology Development Phase of the Dept. of Defense Life Cycle Management System as
of Jan. 10, 2011.
This milestone comes following the endorsement of the Defense Acquisition Board (DAB),
chaired by Dr. Carter (USD for Acquisition, Technology, and Logistics) who has signed the
program’s Milestone A Acquisition Decision Memorandum (ADM).
The DAB endorsed replacing the current 14 Ohio-class Ballistic Missile Submarines
(SSBNs) as they reach the end of their service life with 12 Ohio Replacement Submarines,

(...continued)
ULMS. Six days later, the commander of STRATCOM directed that a Sea Based Strategic Deterrent (SBSD)
capability-based assessment (CBA) be performed. In July 2007, the task force established by the commander of
STRATCOM provided its recommendations regarding capabilities and characteristics for a new SBSD. (Source: Navy
list of key events relating to the ULMS and SBSD provided to CRS and the Congressional Budget Office (CBO) on
July 7, 2008.)
23 On February 14, 2008, the SBSD ICD was approved for joint staffing by the Navy’s Resources and Requirements
Review Board (R3B). On April 29, 2008, the SBSD was approved by DOD’s Functional Capabilities Board (FCB) to
proceed to DOD’s Joint Capabilities Board (JCB). (Source: Navy list of key events relating to the ULMS and SBSD
provided to CRS and CBO on July 7, 2008.)
24 Navy briefing to CRS and CBO on the SBSD program, July 6, 2009.
25 Navy briefing to CRS and CBO on the SBSD program, July 6, 2009.
26 An August 2008 press report states that the program office, called PMS-397, “was established within the last two
months.” (Dan Taylor, “Navy Stands Up Program Office To Manage Next-Generation SSBN,” Inside the Navy, August
17, 2008.
27 “Going Ballistic,” Defense Daily, September 22, 2008, p. 1.
28 Department of Defense Fiscal Year (FY) 2012 Budget Estimates, Navy, Justification Book Volume 2, Research,
Development, Test & Evaluation, Navy Budget Activity 4
, entry for PE0603561N, Project 3220 (pdf page 345 of 888).
Congressional Research Service
9

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

each comprising 16, 87-inch diameter missile tubes utilizing TRIDENT II D5 Life Extended
missiles (initial loadout). The decision came after the program was presented to the Defense
Acquisition Board (DAB) on Dec. 9, 2010.
The ADM validates the program’s Technology Development Strategy and allows entry into
the Technology Development Phase during which warfighting requirements will be refined
to meet operational and affordability goals. Design, prototyping, and technology
development efforts will continue to ensure sufficient technological maturity for lead ship
procurement in 2019.29
Planned Procurement Quantity: 12 SSBN(X)s to Replace 14 Ohio-Class Boats
Navy plans call for procuring 12 SSBN(X)s to replace the current force of 14 Ohio-class SSBNs.
In explaining the planned procurement quantity of 12 boats, the Navy states that 10 operational
SSBNs—meaning boats not encumbered by lengthy maintenance actions—are needed to meet
strategic nuclear deterrence requirements for having a certain number of SSBNs at sea at any
given moment. The Navy states that a force of 14 Ohio-class boats was needed to meet this
requirement because, during the middle years of the Ohio class life cycle, three and sometimes
four of the boats are non-operational at any given moment on account of being in the midst of
lengthy mid-life nuclear refueling overhauls or other extended maintenance actions. The Navy
states that 12 rather than 14 SSBN(X)s will be needed to meet the requirement for 10 operational
boats because the mid-life overhauls of SSBN(X)s, which will not include a nuclear refueling,
will require less time (about two years) than the mid-life refueling overhauls of Ohio-class boats
(which require about four years from contract award to delivery),30 the result being that only two
SSBN(X)s (rather than three or sometimes four) will be in the midst of mid-life overhauls or
other extended maintenance actions at any given moment during the middle years of the
SSBN(X) class life cycle.31
Procurement and Replacement Schedule
Table 2 shows the Navy’s proposed schedule for procuring 12 SSBN(X)s, and for having
SSBN(X)s replace Ohio-class SSBNs. As shown in Table 2, under the Navy’s FY2012 budget,
the first Ohio replacement boat was scheduled to be procured in FY2019, and Ohio replacement
boats were to enter service on a schedule that would maintain the Navy’s SSBN force at 12 boats.
As also shown in Table 2, the Navy’s FY2013 budget deferred the procurement of the first Ohio
replacement boat by two years, to FY2021. As a result of the deferment of the procurement of the
lead boat from FY2019 to FY2021, the Navy’s SSBN force will drop to 11 or 10 boats for the
period FY2029-FY2041. The Navy states that the reduction to 11 or 10 boats during this period is
acceptable in terms of meeting strategic nuclear deterrence requirements, because during these
years, all 11 or 10 of the SSBNs in service will be operational (i.e., none of them will be in the

29 Source: Email from Navy Office of Legislative Affairs to CRS, February 3, 2011.
30 Navy budget submissions show that Ohio-class mid-life nuclear refueling overhauls have contract-award-to-delivery
periods generally ranging from 47 months to 50 months.
31 Source: Navy update briefing on Ohio replacement program to CRS and Congressional Budget Office (CBO),
September 17, 2012. See also “Navy Responds to Debate Over the Size of the SSBN Force,” Navy Live, May 16, 2013,
accessed July 26, 2013, at http://navylive.dodlive.mil/2013/05/16/navy-responds-to-debate-over-the-size-of-the-ssbn-
force/, and Richard Breckenridge, “SSBN Force Level Requirements: It’s Simply a Matter of Geography,” Navy Live,
July 19, 2013, accessed July 26, 2013, at http://navylive.dodlive.mil/2013/07/19/ssbn-force-level-requirements-its-
simply-a-matter-of-geography/.
Congressional Research Service
10

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

midst of a lengthy mid-life overhaul). The Navy acknowledges that there is some risk in having
the SSBN force drop to 11 or 10 boats, because it provides little margin for absorbing an
unforeseen event that might force an SSBN into an unscheduled and lengthy maintenance
action.32 (See also the discussion above in “Planned Procurement Quantity: 12 SSBN(X)s to
Replace 14 Ohio-Class Boats.”)
The minimum level of 10 boats shown in Table 2 for the period FY2032-FY2040 can be
increased to 11 boats (providing some margin for absorbing an unforeseen event that might force
an SSBN into an unscheduled and lengthy maintenance action) by accelerating by about one year
the planned procurement dates of boats 2 through 12 in the program. Under this option, the
second boat in the program would be procured in FY2023 rather than FY2024, the third boat in
the program would be procured in FY2025 rather than FY2026, and so on. Implementing this
option could affect the Navy’s plan for funding the procurement of Virginia-class attack
submarines during the period FY2022-FY2025.33


32 Source: Navy update briefing on Ohio replacement program to CRS and Congressional Budget Office (CBO),
September 17, 2012. A September 28, 2012, press report similarly quotes Rear Admiral Barry Bruner, the Navy’s
director of undersea warfare, as stating that “During this time frame, no major SSBN overhauls are planned, and a force
of 10 SSBNs will support current at-sea presence requirements,” and that “This provides a low margin to compensate
for unforeseen issues that may result in reduced SSBN availability. The reduced SSBN availability during this time
frame reinforces the importance of remaining on schedule with the Ohio Replacement program to meet future strategic
requirements. As the Ohio Replacement ships begin their mid-life overhauls in 2049, 12 SSBNs will be required to
offset ships conducting planned maintenance.” (Michael Fabey, U.S. Navy Defends Boomer Submarine Replacement
Plans,” Aerospace Daily & Defense Report, September 28, 2012: 3.)
33 For more on the Virginia-class program, see CRS Report RL32418, Navy Virginia (SSN-774) Class Attack
Submarine Procurement: Background and Issues for Congress
, by Ronald O'Rourke.
Congressional Research Service
11

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Table 2. Navy Schedule for Procuring SSBN(X)s and Replacing Ohio-Class SSBNs

Schedule in FY2012 Budget
Schedule Under Subsequent Budgets
Combined
Combined
number of
number of
Number
Ohio-
Ohio-class
Number
Ohio-
Ohio-class
of
Cumulative
class
SSBNs
of
Cumulative
class
SSBNs
SSBN(X)s
number of
SSBNs
and
SSBN(X)s
number of
SSBNs
and
Fiscal
procured
SSBN(X)s
in
SSBN(X)s
procured
SSBN(X)s
in
SSBN(X)s
Year
each year
in service
service
in service
each year
in service
service
in service
2019 1

14 14


14
14
2020

14 14


14
14
2021

14 14
1

14
14
2022 1

14 14


14
14
2023

14 14


14
14
2024 1

14 14
1

14
14
2025 1

14 14


14
14
2026 1

14 14
1

14
14
2027 1

13 13
1

13
13
2028 1

12 13
1

12
12
2029 1
1
11 12
1

11
11
2030 1
2
10 12
1
1
10
11
2031 1
3
9 12
1
2
9
11
2032 1
4
8 12
1
2
8
10
2033 1
5
7 12
1
3
7
10
2034
6
6 12
1
4
6
10
2035
7
5 12
1
5
5
10
2036
8
4 12

6
4
10
2037
9
3 12

7
3
10
2038
10 2 12

8
2
10
2039
11 1 12

9
1
10
2040
12
12

10
0
10
2041
12
12

11
0
11
2042
12
12

12
0
12
Source: Navy FY2012-FY2015 budget submissions.
SSBN(X) Design Features
The design of the SSBN(X), now being developed, will reflect the following:
• The SSBN(X) is to be designed for a 40- or 42-year expected service life.34
• Unlike the Ohio-class design, which requires a mid-life nuclear refueling,35 the
SSBN(X) is to be equipped with a life-of-the-ship nuclear fuel core (a nuclear

34 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY 2011,
February 2010, p. 24; and Sam LaGrone, “Navy Has Finalized Specifications for New Ohio-replacement Boomer,”
USNI News (http://news.usni.org), April 7, 2014.
35 As mentioned earlier (see “Current Ohio-Class SSBNs”), the Ohio-class boats receive a mid-life nuclear refueling
(continued...)
Congressional Research Service
12

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

fuel core that is sufficient to power the ship for its entire expected service life).36
Although the SSBN(X) will not need a mid-life nuclear refueling, it will still
need a mid-life non-refueling overhaul (i.e., an overhaul that does not include a
nuclear refueling) to operate over its full 40-year life.
• The SSBN(X) is to be equipped with an electric-drive propulsion train, as
opposed to the mechanical-drive propulsion train used on other Navy
submarines. The electric-drive system is expected to be quieter (i.e., stealthier)
than a mechanical-drive system.37
• The SSBN(X) is to have SLBM launch tubes that are the same size as those on
the Ohio class (i.e., tubes with a diameter of 87 inches and a length sufficient to
accommodate a D-5 SLBM).
• The SSBN(X) will have a beam (i.e., diameter)38 of 43 feet, compared to 42 feet
on the Ohio-class design,39 and a length of 560 feet, the same as that of the Ohio-
class design.40
• Instead of 24 SLBM launch tubes, as on the Ohio-class design, the SSBN(X) is to
have 16 SLBM launch tubes. (For further discussion of the decision to equip the
boat with 16 tubes rather than 20, see Appendix B.)
• Although the SSBN(X) is to have fewer launch tubes than the Ohio-class SSBN,
it is to be larger than the Ohio-class SSBN design, with a reported submerged
displacement of more than 20,000 tons, compared to 18,750 tons for the Ohio-
class design.41
• The Navy states that “owing to the unique demands of strategic relevance,
[SSBN(X)s] must be fitted with the most up-to-date capabilities and stealth to
ensure they are survivable throughout their full 40-year life span.”42

(...continued)
overhaul, called an Engineered Refueling Overhaul (ERO), which includes both a nuclear refueling and overhaul work
on the ship that is not related to the nuclear refueling.
36 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY 2011,
February 2010, p. 5. The two most recent classes of SSNs—the Seawolf (SSN-21) and Virginia (SSN-774) class
boats—are built with cores that are expected to be sufficient for their entire 33-year expected service lives.
37 Source: Spoken testimony of Admiral Kirkland Donald, Deputy Administrator for Naval Reactors, and Director,
Naval Nuclear Propulsion, National Nuclear Security Administration, at a March 30, 2011, hearing before the Strategic
Forces Subcommittee of the Senate Armed Services Committee, as shown in the transcript of the hearing. See also
Dave Bishop, “What Will Follow the Ohio Class?” U.S. Naval Institute Proceedings, June 2012: 31; and Sam LaGrone
and Richard Scott, “Strategic Assets: Deterrent Plans Confront Cost Challenges,” Jane’s Navy International, December
2011: 16.
38 Beam is the maximum width of a ship. For Navy submarines, which have cylindrical hulls, beam is the diameter of
the hull.
39 Dave Bishop, “What Will Follow the Ohio Class?” U.S. Naval Institute Proceedings, June 2012: 31. (Bishop was
program manager for the Ohio replacement program.) See also Sam LaGrone and Richard Scott, “Strategic Assets:
Deterrent Plans Confront Cost Challenges,” Jane’s Navy International, December 2011: 15 and 16.
40 Sydney J. Freedberg, “Navy Seeks Sub Replacement Savings: From NASA Rocket Boosters To Reused Access
Doors,” Breaking Defense (http://breakingdefense.com), April 7, 2014.
41 Sam LaGrone, “Navy Has Finalized Specifications for New Ohio-replacement Boomer,” USNI News
(http://news.usni.org), April 7, 2014.
42 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY 2011,
February 2010, p. 24.
Congressional Research Service
13

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

In an article published in June 2012, the program manager for the Ohio replacement program
stated that “the current configuration of the Ohio replacement is an SSBN with 16 87-inch-
diameter missile tubes, a 43-foot-diamater hull, fairwater planes,43 electric-drive propulsion, [an]
X-stern,44 accommodations for 155 personnel, and a common submarine radio room45 tailored to
the SSBN mission.”46
Acquisition Cost
A March 2014 GAO report assessing selected major DOD weapon acquisition programs states
that the estimated total acquisition cost of the SSBN(X) program is $95,103.2 million (about
$95.1 billion) in constant FY2014 dollars, including $11,718.2 million (about $11.7 billion) in
research and development costs and $83,385.0 million (about $83.4 billion) in procurement
costs.47
The Navy’s FY2015 30-year shipbuilding plan, dated June 2014 and submitted to Congress in
early July 2014, estimates the procurement cost of the lead boat in the program at $12.4 billion in
constant 2014 dollars, including $4.8 billion in detailed design and nonrecurring engineering
(DD/NRE) costs for the entire class, and $7.6 billion in construction costs for the ship itself.48 (It
is a traditional budgeting practice for Navy shipbuilding programs to attach the DD/NRE costs for
a new class of ships to the procurement cost of the lead ship in the class.)
The Navy in February 2010 preliminarily estimated the procurement cost of each Ohio
replacement boat at $6 billion to $7 billion in FY2010 dollars.49 Following the Ohio replacement
program’s December 9, 2010, Milestone A acquisition review meeting (see “Program Origin and
Early Milestones”), DOD issued an Acquisition Decision Memorandum (ADM) that, among
other things, established a target average unit procurement cost for boats 2-12 in the program of
$4.9 billion in constant FY2010 dollars.50 The Navy is working to achieve this target cost. In
2011, the Navy estimated that its cost-reduction efforts had reduced the estimated average unit

43 The term fairwater planes means that the submarine’s forward diving planes are mounted on the ship’s hull, near the
bow, rather than on the ship’s sail (aka “conning tower”).
44 The term X-stern means that the steering and diving fins at the stern of the ship are, when viewed from the rear, in
the diagonal pattern of the letter X, rather than the vertical-and horizontal pattern of a plus sign (which is referred to as
a cruciform stern).
45 The common submarine radio room is a standardized (i.e., common) suite of submarine radio room equipment that is
being installed on other U.S. Navy submarines.
46 Dave Bishop, “What Will Follow the Ohio Class?” U.S. Naval Institute Proceedings, June 2012: 31. See also Sam
LaGrone and Richard Scott, “Strategic Assets: Deterrent Plans Confront Cost Challenges,” Jane’s Navy International,
December 2011: 15 and 16.
47 Government Accountability Office, Defense Acquisitions[:] Assessments of Selected Weapons Programs, GAO-14-
340SP, March 2014, p. 141.
48 U.S. Navy, Report to Congress on the Annual Long-Range Plan for Construction of Naval Vessels for FY2015, June
2014, p. 14.
49 U.S. Navy, Report to Congress on Annual Long-Range Plan for Construction of Naval Vessels for FY 2011,
February 2010, p. 20.
50 Christopher J. Castelli, “DOD: New Nuclear Subs Will Cost $347 Billion To Acquire, Operate,” Inside the Navy,
February 21, 2011; Elaine M. Grossman, “Future U.S. Nuclear-Armed Vessel to Use Attack-Submarine Technology,”
Global Security Newswire, February 24, 2011; Jason Sherman, “Navy Working To Cut $7.7 Billion From Ohio
Replacement Program,” Inside the Navy, February 28, 2011. See also Christopher J. Castelli, “DOD Puts ‘Should-Cost’
Pressure On Major Weapons Programs,” Inside the Navy, May 2, 2011.
Congressional Research Service
14

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

procurement cost of boats 2-12 to $5.6 billion each in constant FY2010 dollars.51 In May 2013,
the Navy stated that its continued cost-reduction efforts had reduced the estimated average unit
procurement cost of boats 2-12 to about $5.4 billion each in constant FY2010 dollars.52 In April
2014, the Navy stated that its continued cost-reduction efforts had reduced the estimated average
unit procurement cost of boats 2-12 to about $5.36 billion each in constant FY2010 dollars.53 The
Navy continues examining potential further measures to bring the cost of boats 2-12 closer to the
$4.9 billion target cost.54
The above cost figures do not include costs for refurbishing D-5 SLBMs so as to extend their
service lives to 2042.
Operation and Support (O&S) Cost
The Navy is working to reduce the estimated operation and support (O&S) cost of each SSBN(X)
from $124 million per year to $110 million per year in constant FY2010 dollars.55
Common Missile Compartment (CMC)
Current U.S. and UK plans call for the SSBN(X) and the UK’s Successor SSBN to use a missile
compartment—the middle section of the boat with the SLBM launch tubes—of the same general
design.56 As mentioned earlier (see “U.S.-UK Cooperation on SLBMs”), the UK’s SSBN is to be
armed with eight SLBMs, or half the number to be carried by the SSBN(X). The modular design
of the CMC will accommodate this difference. Since the UK’s first Vanguard-class SSBN was
originally projected to reach the end of its service life in 2024—three years before the first Ohio-
class SSBN is projected to reach the end of its service life—design work on the CMC began
about three years sooner than would have been required to support the Ohio replacement program
alone. This is the principal reason why the FY2010 budget included a substantial amount of
research and development funding for the CMC. The UK is providing some of the funding for the
design of the CMC, including a large portion of the initial funding.
A March 2010 Government Accountability office (GAO) report stated:
According to the Navy, in February 2008, the United States and United Kingdom began a
joint effort to design a common missile compartment. This effort includes the participation

51 Source: Navy briefing for CRS and Congressional Budget Office on Navy submarine programs, March 16, 2012.
52 Source: Navy meeting with CRS and CBO to discuss Navy acquisition issues, May 17, 2013.
53 Sam LaGrone, “Navy Has Finalized Specifications for New Ohio-replacement Boomer,” USNI News
(http://news.usni.org), April 7, 2014; Sydney J. Freedberg, “Navy Seeks Sub Replacement Savings: From NASA
Rocket Boosters To Reused Access Doors,” Breaking Defense (http://breakingdefense.com), April 7, 2014; Jason
Sherman, “Navy Squeezes $240 Million From New Strategic Sub Program,” Inside the Navy, April 14, 2014.
54 See, for example, Dave Bishop, “Two Years In And Ground Strong, The Ohio Replacement Program,” Undersea
Warfare
, Spring 2012: 5-7.
55 Dave Bishop, “Two Years In And Ground Strong, The Ohio Replacement Program,” Undersea Warfare, Spring
2012: 5; Megan Eckstein, “Ohio-Replacement Sub Technology To Drop O&S Costs To $110M A Year,” Inside the
Navy
, March 1, 2013.
56 Statement of Rear Admiral Stephen Johnson, USN, Director, Strategic Systems Programs, Before the Subcommittee
on Strategic Forces of the Senate Armed Services Committee [on] FY2011 Strategic Systems, March 17, 2010, p. 6,
which states: “The OHIO Replacement programs includes the development of a common missile compartment that will
support both the OHIO Class Replacement and the successor to the UK Vanguard Class.”
Congressional Research Service
15

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

of government officials from both countries, as well as industry officials from Electric Boat
Corporation and BAE Systems. To date, the United Kingdom has provided a larger share of
funding for this effort, totaling just over $200 million in fiscal years 2008 and 2009.57
A March 2011 GAO report stated:
The main focus of OR [Ohio Replacement program] research and development to date has
been the CMC. The United Kingdom has provided $329 million for this effort since fiscal
year 2008. During fiscal years 2009 and 2010, the Navy had allocated about $183 million for
the design and prototyping of the missile compartment.58
A May 2010 press report stated that “the UK has, to date, funded the vast majority of [the CMC’s]
upfront engineering design activity and has established a significant presence in Electric Boat’s
Shaw’s Cove CMC design office in New London, CT.”59
Under the October 2010 UK defense and security review report (see “U.S.-UK Cooperation on
SLBMs”), the UK now plans to deliver its first Successor class SSBN in 2028, or about four
years later than previously planned.
Program Funding
Table 3 shows funding for the Ohio replacement program. The table shows U.S. funding only; it
does not include funding provided by the UK to help pay for the design of the CMC. As can be
seen in the table, the Navy’s proposed FY2015 budget requests $1,219.3 million for continued
research and development work on the program.
Table 3. Ohio Replacement Program Funding
(Millions of then-year dollars, rounded to nearest tenth; totals may not add due to rounding)
FY15
FY16
FY17
FY18
FY19

FY08 FY09 FY10
FY11
FY12
FY13
FY14
(req.)
(proj.)
(proj.)
(proj.
(proj.)
PE0101221N/Project
3198
0
9.7
0 0 0 0 0 0 0 0 0 0
PE0603561N/Project
3220
0
0
363.4
431.4
761.2
431.9
784.8 0 0 0 0 0
PE0603561N/Project
9999
4.9
3.2
4.0 0 0 0 0 0 0 0 0 0
PE0603570N/Project
3219 0 0
107.5 178.3 285.4 73.7 296.1 370.0 422.7 411.6 401.7 291.3
PE0603595N/Project
3220 0 0 0
0
0
0
0 812.8 994.9 696.3 709.5 394.5
PE0603595N/Project
3237
0
0
0 0 0 0 0
36.5 0 0 0 0
Total R&D funding
4.9 12.9 474.9 609.7 1,046.6 505.6 1,080.9 1,219.3 1,417.6 1,107.9 1,111.2 685.8
Procurement funding
0
0
0 0 0 0 0 0
13.2
777.8
791.8
2,887.9
TOTAL
all
funding
4.9 12.9 474.9 609.7 1.046.6 505.6 1,080.9 1,219.3 1,430.8 1,885.7 1,903.0 3,573.7

57 Government Accountability Office, Defense Acquisitions[:] Assessments of Selected Weapon Programs, GAO-10-
388SP, March 2010, p. 152.
58 Government Accountability Office, Defense Acquisitions[:] Assessments of Selected Weapon Programs, GAO-11-
233SP, March 2011, p. 147.
59 Sam LaGrone and Richard Scott, “Deterrent Decisions: US and UK Wait on Next Steps for SSBN Replacements,”
Jane’s Navy International, May 2010, pp. 10-11.
Congressional Research Service
16

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Source: Navy FY2015 budget and prior-year budgets.
Notes: PE means Program Element, that is, a research and development line item. A Program Element may
include several projects. PE0101221N/Project 3198 is Underwater Launch Missile System (ULMS) project
within the PE for Strategic Submarine and Weapons System Support. PE0603561N/Project 3220 is Sea-Based
Strategic Deterrent (SBSD) project within the PE for Advanced Submarine System Development.
PE0603561N/Project 9999 is Congressional funding additions within the PE for Advanced Submarine System
Development. PE0603570N/Project 3219 is SSBN(X) reactor plant project within the PE for Advanced
Nuclear Power Systems. PE0603595N/Project 3220 is Sea-Based Strategic Deterrent (SBSD) Advanced
Submarine System Development project within the PE for Ohio replacement. PE0603595N/Project 3237 is
Launch Test Facility project within the PE for Ohio Replacement. Procurement funding shown in FY2017 and
FY2018 is advance procurement funding for first SSBN(X), which is scheduled to be procured in FY2021.
Issues for Congress
FY2014 Funding Shortfall for Designing Nuclear Fuel Core
One potential oversight issue for Congress concerns funding for designing the nuclear fuel core to
be used by Ohio replacement boats. The fuel core is being designed by the Naval Nuclear
Propulsion Program (aka Naval Reactors, or NR), an office that is simultaneously part of both the
Naval Sea Systems Command (NAVSEA) within the Department of the Navy (DON) and the
National Nuclear Security Administration (NNSA) within the Department of Energy (DOE).
NR’s budget includes both DON and DOE funding. A $151 million shortfall in NR’s FY2014
DOE funding includes, among other things, an $11 million shortfall in the DOE-funded part of
NR’s budget for the procurement of high-performance computers needed to design the fuel core
for Ohio replacement boats in a timely manner. As a result, NR states, the Ohio replacement
program now faces a six-month delay in designing the fuel core that, if not addressed, could
affect the overall schedule for building the lead ship and having that ship be ready on time for its
scheduled first deterrent patrol.60
In his prepared statement for an April 8, 2014, hearing on FY2015 atomic energy defense and
nuclear forces programs before the Strategic Forces subcommittee of the House Armed Services
Committee, Admiral John M. Richardson, the Director of NR, stated:
Over the last 5 years, Naval Reactors’ appropriation has been below requirements by over
$450M. For example, in FY14, Naval Reactors was funded $151M below the request. As a
result, Naval Reactors will be required to shut down one of the two prototype reactor plants
in upstate New York during the second quarter of FY15 due to insufficient maintenance
funding. This shutdown results in 450 sailors that will not be trained and will not be sent to
the Fleet next year. This directly translates to more work at sea and in port for our nuclear-
trained sailors further stressing them and their families. This reactor will remain shut down
until this maintenance can be performed. The funding shortage has also made impossible the
purchase of vital capital equipment and postponed infrastructure improvements, most
notably defunding High Performance Computing capacity that is needed to deliver the
OHIO-class Replacement reactor design on time and to support the existing fleet. Cancelling
this computer purchase in FY14 has resulted in at least a 6-month delay to reactor core
manufacturing, impacting the OHIO-class replacement lead-ship construction schedule.61

60 Source of $11 million figure: NR briefing to CRS and CBO, May 7, 2014.
61 Statement of Admiral John M. Richardson, Deputy Administrator, Office of Naval Reactors National Nuclear
Security Administration, U.S. Department of Energy, on the Fiscal Year 2015 President’s Budget Request, Before the
(continued...)
Congressional Research Service
17

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

In the question-and-answer portion of the hearing, Admiral Richardson stated:
As I stand right now, I am six months behind in that by virtue of being unable to purchase
that computer. I can—I can most likely recover that if I’m funded in [FY20]15, and so that’s
my mitigation [strategy]. I’ll reprioritize work [to the Ohio replacement program, since]
that’s a national strategic priority, our number one priority as well. And I can do that, but it
comes at a cost to that other work [done by NR].62
A May 5, 2014, information paper from NR states:
The FY14 Consolidated Appropriations Act63 resulted in a $151M [million] shortfall to
Naval Reactors’ FY14 DOE appropriation....
[The] FY14 funding level was insufficient to support a planned procurement ($11 million) of
High Performance Computers (HPCs) necessary to complete the reactor design for [the]
Ohio Replacement [program]. If not restored in FY15, the [nuclear fuel] core design is
expected to be delayed up to six months. The next planned HPC procurement was FY16, but
NR is considering options to purchase [HPCs] in FY15 (assuming adequate funding is
available) to minimize the delay to ORP [the Ohio replacement program]. If HPCs are
procured at the beginning of FY15, NR can reduce the impact. While the HPCs are important
to ORP, they are also an integral part of the toolbox supporting the existing fleet. This is why
they are included in [NR’s] laboratory base funding.64
Likelihood That Navy Will Reach $4.9 Billion Target Cost
Another potential oversight issue for Congress regarding the Ohio replacement program is the
likelihood that the Navy will be able to achieve DOD’s goal of reducing the average unit
procurement cost of boats 2-12 in the program to $4.9 billion each in FY2010 dollars. As
mentioned earlier, as of April 2014, the Navy estimated that its cost-reduction efforts had reduced
the average unit procurement cost of boats 2-12 to about $5.36 billion each in FY2010 dollars,
leaving another $460 million or so in cost reduction to reach the $4.9 billion target cost. Measures
that the Navy has taken to reduce the average unit procurement cost of boats 2-12 to about $5.36
billion include, among other things, reducing the number of SLBM launch tubes from 20 to 16,65
and making the launch tubes no larger in diameter than those on the Ohio-class design.66

(...continued)
Subcommittee on Strategic Forces, House Committee on Armed Services, April 8, 2014, p. 2.
62 Source: Transcript of hearing. The issue was also discussed at a March 27, 2014, hearing on the Department of the
Navy’s proposed FY2015 budget before the Senate Armed Services Committee, and an April 10 hearing on Navy
shipbuilding programs before the Seapower subcommittee of the Senate Armed Services Committee. For press reports
based on these hearings, see John C. Marcario, “Lack of DOE Funds Could Delay Ohio-class Replacement Program,”
Seapower (www.seapowermagazine.org), March 27, 2014; and Olga Belogolova, “Reactor Shortfall Could Mean A
Delay For Ohio Sub Program’s Lead Ship,” Inside the Navy, April 14, 2014.
63 H.R. 933/P.L. 113-6 of March 26, 2013, The Consolidated and Further Continuing Appropriations Act, 2013.
64 NR point paper dated May 5, 2014, provided by NR to CRs and CBO at a May 7, 2014, briefing.
65 For further discussion of the decision to equip the boat with 16 tubes rather than 20, see Appendix B.
66 The Navy had examined the option of equipping the SSBN(X) with tubes greater in diameter than those on the Ohio-
class design, so as to support an option of arming the boats many years from now with a new SLBM that is larger in
diameter than the D-5 SLBM.
Congressional Research Service
18

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

An October 19, 2012, press report quoted Rear Admiral David Johnson, the program executive
officer for submarines, as stating that in achieving the targeted reduction in per-boat procurement
cost, “I think one of the biggest effectors we can do is buying the ship smartly.... We can probably
get somewhere in the range of $300 million-plus per ship out [of the estimated cost], just by
buying the ships smartly, encouraging a long production run in industry and the vendor base.”67
An April 7, 2014, press report stated:
“We are looking at everything,” [Rear Admiral David] Johnson told reporters, “all the way
down to trying to reuse the doors on the missile tube access covers from the Ohio” as those
subs go out of service. “Those doors are dry”—i.e. they aren’t exposed to the ocean—“so
they really see no wear,” he said.
It’s relatively easy to reuse missile tube parts because the tubes themselves are the same size
on both the Ohios and the future missile sub, which will also carry the Trident for at least the
first part of its service life. (An all-new nuclear missile is a notion for the distant future). But
nobody’s building Ohios any more, so Johnson’s priority is taking advantage of the Navy’s
ongoing Virginia--class attack sub program.
The service is steadily buying two Virginia submarines a year to add to the 10 already in
service. By contrast, the entire Ohio Replacement Program (formerly known as SSN(X)) will
be 12 subs, so any way to piggyback off the higher-volume program will save money.
Johnson wants to bundle procurement of at least some materials and components that will go
on both submarines.
So how many components will the Virginia and the ORP have in common? There’s not even
an estimate yet, Johnson said. “It’s not like ten percent, it’s not like 75%, it’s somewhere in
the range there,” he said. But as the Navy and industry design the replacement for the Ohio-
class, he said, with every component, “we see if we can make it fit using a Seawolf or Ohio
or Virginia-class pump, valve,” etc.
But since the new nuclear missile submarine will be larger than anything now in service—
the biggest submarine ever built in the US, said Johnson, roughly twice the size of the
Virginia—a lot of its components will have to be bigger, too. Even with those scaled-up
parts, though, the admiral said, the same factory can often build a big version and a little
version of a given component, a pump for example, at a lower cost than two companies
building entirely different designs.68
Potential oversight questions include the following:
• How did DOD settle on the figure of $4.9 billion in FY2010 dollars as the target
average unit procurement cost for boats 2-12 in the program? On what analysis
was the selection of this figure based?
• How difficult will it be for the Navy to reach this target cost? What options is the
Navy examining to achieve the additional $460 million or so in unit procurement
cost savings needed to reach it?

67 As quoted in Lee Hudson, “Navy Plans To Award Ohio Replacement R&D Contract In December,” Inside the Navy,
October 22, 2012.
68 Sydney J. Freedberg, “Navy Seeks Sub Replacement Savings: From NASA Rocket Boosters To Reused Access
Doors,” Breaking Defense (http://breakingdefense.com), April 7, 2014.
Congressional Research Service
19

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

• Would a boat costing $4.9 billion have sufficient capability to perform its
intended missions?
• What, if anything, does DOD plan to do if the Navy is unable to achieve the $4.9
billion target cost figure? If $4.9 billion is the target figure, is there a
corresponding “ceiling” figure higher than $4.9 billion, above which DOD would
not permit the Ohio replacement program to proceed? If no such figure exists,
should DOD establish one?
Accuracy of Navy’s Estimated Unit Procurement Cost
Overview
Another potential oversight issue for Congress concerns the accuracy of the Navy’s estimate of
the procurement cost of each SSBN(X). The accuracy of the Navy’s estimate is a key
consideration in assessing the potential affordability of the Ohio replacement program, including
its potential impact on the Navy’s ability to procure other kinds of ships during the years of
SSBN(X) procurement. Some of the Navy’s ship designs in recent years, such as the Gerald R.
Ford (CVN-78) class aircraft carrier,69 the San Antonio (LPD-17) class amphibious ship70 and the
Littoral Combat Ship (LCS),71 have proven to be substantially more expensive to build than the
Navy originally estimated.
The accuracy of the Navy’s estimate can be assessed in part by examining known procurement
costs for other recent Navy submarines—including Virginia (SSN-774) class attack submarines
(which are currently being procured), Seawolf (SSN-21) class attack submarines (which were
procured prior to the Virginia class), and Ohio (SSBN-726) class ballistic missile submarines—
and then adjusting these costs for the Ohio replacement program so as to account for factors such
as differences in ship displacement and design features, changes over time in submarine
technologies (which can either increase or reduce a ship’s procurement cost, depending on the
exact technologies in question), advances in design for producibility (i.e., design features that are
intended to make ships easier to build), advances in shipyard production processes (such as
modular construction), and changes in submarine production economies of scale (i.e., changes in
the total number of attack submarines and ballistic missile submarines under construction at any
one time).
The Navy’s estimated unit procurement cost for the program at any given point will reflect
assumptions on, among other things, which shipyard or shipyards will build the boats, and how
much Virginia-class construction will be taking place in the years when SSBN(X)s are being
built. Changing the Navy’s assumption about which shipyard or shipyards will build SSBN(X)s
could reduce or increase the Navy’s estimated unit procurement cost for the boats. If shipbuilding
affordability pressures result in Virginia-class boats being removed from the 30-year shipbuilding

69 For more on the CVN-78 program, see CRS Report RS20643, Navy Ford (CVN-78) Class Aircraft Carrier Program:
Background and Issues for Congress
, by Ronald O'Rourke.
70 For more on the LPD-17 program, see CRS Report RL34476, Navy LPD-17 Amphibious Ship Procurement:
Background, Issues, and Options for Congress
, by Ronald O'Rourke.
71 For more on the LCS program, see CRS Report RL33741, Navy Littoral Combat Ship (LCS) Program: Background
and Issues for Congress
, by Ronald O'Rourke.
Congressional Research Service
20

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

plan during the years of SSBN(X) procurement, the resulting reduction in submarine production
economies of scale could make SSBN(X)s more expensive to build than the Navy estimates.
October 2013 CBO Report
An October 2013 Congressional Budget Office (CBO) report on the cost of the Navy’s
shipbuilding programs stated:
The design, cost, and capabilities of the SSBN(X)—the submarine class slated to replace the
Ohio class—are among the most significant uncertainties in the Navy’s and CBO’s analyses
of the cost of future shipbuilding....
The recent history of cost estimates for the SSBN(X) illustrates both the high expected costs
of the program and the uncertainty regarding those costs. The Navy’s 2007 and 2008
shipbuilding plans included a projection that the SSBN(X) would cost an average of $3.8
billion (in 2013 dollars) per ship. The 2011 plan estimated the costs of the SSBN(X) class at
an average of $7.9 billion apiece, while under the 2012 plan, the cost was lowered to $6.7
billion. The Navy currently estimates the cost of the lead SSBN(X) at $12.0 billion. The
estimated average cost of follow-on ships is now $5.9 billion, and the Navy has stated an
objective of reducing that cost to $5.4 billion in 2013 dollars. All told, the Navy estimates
that building 12 submarines will cost $77 billion, an average of $6.4 billion each.
Between the 2011 and 2012 plans, the Navy redefined its SSBN(X) design with the primary
goal of reducing the cost. The Navy’s cost estimate in the 2011 plan was based on a design
similar in size to the Ohio class and on the cost of building Ohio class submarines using
contemporary technology and under current conditions of the shipbuilding industry (such as
the number of shipbuilders and vendors and the amount of other business in the shipyards).
The Navy states that it was able to reduce the estimated cost of the SSBN(X) to the current
projection by making the following changes:
— Using a less expensive and more specific basic design (eliminating some costs in the
estimate for the 2011 plan that were associated with uncertainty);
— Reducing the number of missile tubes from 20 to 16;
— Reducing the diameter of the missile tubes from 97 inches to 87 inches, which is the
minimum needed to launch the Trident D-5 submarine-launched ballistic missile;
— Reducing the capability of the torpedo room and various sensor arrays and reducing the
size of the sail mast;
— Increasing the use of components from the Virginia class attack submarines; and
— Simplifying many small elements in the design of the new submarine.
While the Navy estimates that the lead SSBN(X) will cost $12.0 billion, CBO estimates that
it will cost $13.0 billion. Estimating the cost of the first submarine of a class is particularly
difficult because it is not clear how much the Navy will spend on nonrecurring engineering
and detailed design. The Navy spent about $2 billion on those items for the lead Virginia
class attack submarine. The historical record for the lead ship of new classes of submarines
in the 1970s and 1980s indicates that there is little difference in those items on a per-ton
basis between a lead attack submarine and a lead SSBN. Therefore, CBO projects that the
cost of nonrecurring engineering and detailed design is proportional to the weight of
Congressional Research Service
21

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

submarines, which implies that nonrecurring items would cost about $5 billion for the lead
SSBN(X)—a submarine that will be somewhat larger than an Ohio class submarine and
about 2½ times the size of a Virginia class submarine. The Navy’s estimate for the lead
SSBN(X) takes into account nonrecurring costs of an estimated $4.5 billion.
All told, 12 SSBN(X)s would cost about $87 billion in CBO’s estimation, or an average of
$7.2 billion each—$0.8 billion higher per boat than the Navy’s estimate. That average
includes the $13.0 billion estimated cost of the lead submarine and a $6.7 billion average
estimated cost for the 2nd through 12th submarines. Research and development would cost an
additional $10 billion to $15 billion, for a total program cost of $97 billion to $102 billion,
CBO estimates.72
Program Affordability and Impact on Other Navy
Shipbuilding Programs

Overview
Another oversight issue for Congress concerns the prospective affordability of the Ohio
replacement program and its potential impact on funding available for other Navy shipbuilding
programs. It has been known for some time that the Ohio replacement program, if funded through
the Navy’s shipbuilding account, would place considerable pressure on the shipbuilding account,
making it more difficult for the Navy to procure other kinds of ships in desired numbers during
the years that Ohio replacement boats are being procured. As discussed in the next section, the
Navy has identified the Ohio replacement program as its top priority program. What this means is
that the Ohio replacement program will be fully funded, and that any resulting pressures on the
Navy’s shipbuilding account would be borne by other Navy shipbuilding programs. The Navy’s
report on the FY2015 30-year shipbuilding plan states:
Beginning in FY2020 and running through the end of the 30-year plan horizon, the [30-year
shipbuilding] plan requires an average annual investment of about $17.2B [billion] (FY14$)
[constant FY2014 dollars] to finance, which is ~$4B/year more than our historical average
annual investment of ~$13B/yr. In particular, for the period while we are procuring the
OHIO Replacement (OR) SSBN (essentially FY[20]25-FY[20]34), the Navy will have to
provide an average of $19.7B annually withthe peak year in FY[20]32 at slightly more than
$24B. Even if the OHIO Replacement Program (ORP) is removed from the resource total
[i.e., even if the Ohio replacement program is funded through an account other than the
Navy’s shipbuilding account], the average funding required beginning in FY2020 is ~$14-
15B/yr to build the FSA [Force Structure Assessment] force [i.e., the Navy’s planned 306-
ship fleet]....
The average cost of this plan during the period in which DON [the Department of the Navy]
is procuring OR SSBN[s] (~$19.7B/year [during] FY2025-[FY]2034) cannot be
accommodated by the Navy from existing resources—particularly if DoD is required to be
funded at BCA [Budget Control Act] levels....
There are two significant challenges to resourcing the DON shipbuilding program. The first
will be funding and delivering the OR SSBN.... The DON can only afford the SSBN

72 Congressional Budget Office, An Analysis of the Navy’s Fiscal Year 2014 Shipbuilding Plan, October 2013, pp. 23-
24.
Congressional Research Service
22

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

procurement costs with significant increases in our top-line or by having the SSBN funded
from sources that do not result in any reductions to the DON’s current resourcing level....
Replacing the OHIO Class SSBNs will have a disproportionate impact on DON shipbuilding
plans and costs through the mid-term planning period [the middle ten years of the 30-year
shipbuilding plan] and into the early years of the far-term planning period [the final ten years
of the 30-year shipbuilding plan].73
September 2013 Navy Testimony
On September 18, 2013, Admiral Jonathan Greenert, the Chief of Naval Operations, testified that
the Ohio replacement program “is the top priority program for the Navy.” Greenert made the
statement as part of a discussion of implications for Navy programs if DOD spending were
reduced to the revised cap levels (i.e., the lower caps) in the Budget Control Act. In such a budget
scenario, Greenert testified, “We would still be able to sustain today’s ballistic missile submarine
(SSBN) force. The SSBN(X) would still deliver in 2030 to replace retiring Ohio class SSBN
while meeting requirements for SSBN presence and surge. This is the top priority program for the
Navy.”74
Prior to September 2013, Navy officials had suggested that if the Navy does not receive
additional funding to help pay for the Ohio replacement program, the Navy might need to reduce
funding for other shipbuilding programs. At a September 12, 2013, hearing before the Seapower
and Projection Forces subcommittee of the House Armed Services Committee on undersea
warfare, a Navy official made this point more definitively, stating:
The CNO has stated, his number one priority as the chief of Naval operations, is our—our
strategic deterrent—our nuclear strategic deterrent. That will trump all other vitally
important requirements within our Navy, but if there’s only one thing that we do with our
ship building account, we—we are committed to sustaining a two ocean national strategic
deterrent that protects our homeland from nuclear attack, from other major war aggression
and also access and extended deterrent for our allies.75
At this same hearing, Navy officials also testified more specifically than they have in the past on
the amount of supplemental funding they are seeking for the Ohio replacement program, and on
the potential consequences for other shipbuilding programs if this funding is not received. The
Navy testified that the service is seeking about $4 billion per year over 15 years in supplemental
funding—a total of about $60 billion—for the Ohio replacement program.76 The 15 years in
question, Navy officials suggested in their testimony, are the years in which the Ohio replacement
boats are to be procured (FY2021-FY2035, as shown in Table 2).77 The $60 billion in additional
funding equates to an average of $5 billion for each of the 12 boats, which is close to the Navy’s

73 U.S. Navy, Report to Congress on the Annual Long-Range Plan for Construction of Naval Vessels for FY2015, June
2014, pp. 5, 6, 7, 14.
74 Statement of Admiral Jonathan Greenert, U.S. Navy, Chief of Naval Operations, Before the House Armed Services
Committee on Planning for Sequestration in FY 2014 and Perspectives of the Military Services on the Strategic
Choices and Management Review, September 18, 2013, p. 10.
75 Transcript of hearing. (Spoken remarks of Rear Admiral Richard Breckenridge. The other witness at the hearing was
Rear Admiral David Johnson).
76 Transcript of hearing. (Spoken remarks of Rear Admiral Richard Breckenridge.)
77 Transcript of hearing. (Spoken remarks of Rear Admiral Richard Breckenridge.)
Congressional Research Service
23

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

target of an average unit procurement cost of $4.9 billion in constant FY2010 dollars for boats 2-
12 in the program. The Navy stated at the hearing that the $60 billion in supplemental funding
that the Navy is seeking would equate to less than 1% of DOD’s budget over the 15-year period.
The Navy also suggested that the 41 pre-Ohio class SSBNs that were procured in the 1950s and
1960s (see Table 1) were partially financed with funding that was provided as a supplement to
the Navy’s budget.78
The Navy officials stated at the September 12 hearing that if the Navy were to receive about $30
billion in supplemental funding for the Ohio replacement program—about half the amount that
the Navy is requesting—then the Navy would need to eliminate from its 30-year shipbuilding
plan a notional total of 16 other ships, including, notionally, 4 Virginia-class attack submarines, 4
destroyers, and 8 other combatant ships (which might mean ships such as Littoral Combat Ships
or amphibious ships). Navy officials stated, in response to a question, that if the Navy were to
receive none of the supplemental funding that it is requesting, then these figures could be
doubled—that is, that the Navy would need to eliminate from its 30-year shipbuilding plan a
notional total of 32 other ships, including, notionally, 8 Virginia-class attack submarines, 8
destroyers, and 16 other combatant ships.79
Some Options for Addressing the Issue
In addition to making further changes and refinements in the design of the SSBN(X), options for
reducing the cost of the Ohio replacement program and the program’s potential impact on funding
available for other Navy shipbuilding programs include the following:
• using a joint block buy contract that would cover both the Ohio replacement
program and the Virginia-class attack submarine program;
• altering the schedule for procuring the SSBN(X)s so as to create additional
opportunities for using incremental funding for procuring the ships;
• funding the procurement of SSBN(X)’s outside the Navy’s shipbuilding budget;
and
• reducing the planned number of SSBN(X)s.
Each of these options is discussed below.

78 Transcript of hearing (Spoken remarks of Rear Admiral Richard Breckenridge.) Regarding supplemental funding for
the 41 earlier SSBNs, Breckenridge stated:
The—just a little backstep and history to talk about the two other times that we've had to, as a
nation, build the strategic deterrent. So in—in the ‘60s we built 41 SSBNs; they were called the 41
For Freedom. We did that in a seven-year period, which again is just an incredible—only in
America could you go ahead and put out 41 ballistic missile submarines in a seven-year period.
There was an impact to other shipbuilding accounts at that time, but the priority was such for
national survival that we had to go ahead and—and make that a—an imperative and a priority.
There was a supplement to the Navy’s top line at that time when we—when we fielded the class,
but it did leave—cast quite a shadow over the rest of the shipbuilding in the ‘60s.
We recapitalized those 41 For Freedom with 18 Ohio-class SSBNs in the ‘80s. It was the Reagan
years. There was a major naval buildup. And underneath the umbrella of that buildup we were able
to afford as a nation the recapitalization of building 18 SSBNs.
79 Transcript of hearing. (Spoken remarks of Rear Admiral Richard Breckenridge.) See also Christopher J. Castelli,
“Admiral: DOD Likely To Support SSBN(X) Supplemental Funding,” Inside the Navy, November 11, 2013.
Congressional Research Service
24

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Joint Block Buy Contract Covering Both Ohio Replacement and Virginia-Class
Programs

To help reduce ship procurement costs, the Navy in recent years has made extensive use of
multiyear procurement (MYP) contracts and block buy contracts in its shipbuilding programs,80
including the Virginia class attack submarine program.81 In light of this, the Navy will likely seek
to use block buy and/or MYP contracting in the Ohio replacement program. More particularly, the
Navy is investigating the possibility of using a single, joint-class block buy contract that would
cover both Ohio replacement boats and Virginia class boats.82 Such a contract, which could be
viewed as precedent-setting in its scope, could offer savings beyond what would be possible
using separate MYP or block buy contracts for the two submarine programs. A March 2014 GAO
report states that if the Navy decides to propose such a contract, it would develop a legislative
proposal in 2017.83
Altering Procurement Schedule to Make More Use of Incremental Funding
Another option for managing the potential impact of the Ohio replacement program on other
Navy shipbuilding programs would be to stretch out the schedule for procuring SSBN(X)s and
make greater use of split funding (i.e., two-year incremental funding) in procuring them.84 This
option would not reduce the total procurement cost of the Ohio replacement program—to the
contrary, it might increase the program’s total procurement cost somewhat by reducing
production learning curve benefits in the Ohio replacement program.85 This option could,
however, reduce the impact of the Ohio replacement program on the amount of funding available
for the procurement of other Navy ships in certain individual years. This might reduce the amount
of disruption that the Ohio replacement program causes to other shipbuilding programs in those
years, which in turn might avoid certain disruption-induced cost increases for those other
programs. The annual funding requirements for the Ohio replacement program might be further
spread out by funding some of the SSBN(X)s with three- or four-year incremental funding.86

80 For more on MYP and block buy contracting, see CRS Report R41909, Multiyear Procurement (MYP) and Block
Buy Contracting in Defense Acquisition: Background and Issues for Congress
, by Ronald O'Rourke and Moshe
Schwartz
81 See CRS Report RL32418, Navy Virginia (SSN-774) Class Attack Submarine Procurement: Background and Issues
for Congress
, by Ronald O'Rourke.
82 Government Accountability Office, Defense Acquisitions[:] Assessments of Selected Weapons Programs, GAO-14-
340SP, March 2014, p. 141. See also Olga Belogolova, “Navy Looking To Leverage Joint Cross-Class Buy For
Virginia, Ohio Subs, Inside the Navy, April 14, 2014; “Navy Mulling Cross-Class Joint Buys, Multiyear Contracts to
Meet Ohio-Replacement Goals,” Defense Daily, April 14, 2014: 6-7; Lee Hudson, “Navy leadership Continues To
Rally Congress To Fund Sub Programs,” Inside the Navy, February 17, 2014; Lee Hudson, “Navy Would Look To Cut
VA-Class Sub Build Rate To Pay For SSBN(X),” Inside the Navy, February 3, 2014; Lee Hudson, “Lower Ohio-
Replacement Cost Tied To VA-Class Multiyear Deal,” Inside the Navy, May 20, 2013; Jason Sherman, “Navy Eyes
Consolidation Of Sub Buys For Ohio Replacement, Virginia Class,” Inside the Navy, February 28, 2011.
83 Government Accountability Office, Defense Acquisitions[:] Assessments of Selected Weapons Programs, GAO-14-
340SP, March 2014, p. 141.
84 Under split funding, a boat’s procurement cost is divided into two parts, or increments. The first increment would be
provided in the fiscal year that the boat is procured, and the second would be provided the following fiscal year.
85 Procuring one SSBN(X) every two years rather than at the Navy’s planned rate of one per year could result in a loss
of learning at the shipyard in moving from production of one SSBN to the next.
86 The Navy, with congressional support, currently uses split funding to procure large-deck amphibious assault ships
(i.e., LHAs). The Navy currently is permitted by Congress to use four-year incremental funding for procuring the first
(continued...)
Congressional Research Service
25

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Table 4 shows the Navy’s currently planned schedule for procuring 12 SSBN(X)s and a notional
alternative schedule that would start two years earlier and end two years later than the Navy’s
currently planned schedule. Although the initial ship in the alternative schedule would be
procured in FY2019, it could be executed as it if were funded in FY2021. Subsequent ships in the
alternative schedule that are funded earlier than they would be under the Navy’s currently planned
schedule could also be executed as if they were funded in the year called for under the Navy’s
schedule. Congress in the past has funded the procurement of ships whose construction was
executed as if they had been procured in later fiscal years.87 The ability to stretch the end of the
procurement schedule by two years, to FY2035, could depend on the Navy’s ability to carefully
husband the use of the nuclear fuel cores on the last two Ohio-class SSBNs, so as to extend the
service lives of these two ships by one or two years. Alternatively, Congress could grant the Navy
the authority to begin construction on the 11th boat a year before its nominal year of procurement,
and the 12th boat two years prior to its nominal year of procurement.
Table 4. Navy SSBN(X) Procurement Schedule and a Notional Alternative Schedule
Boat might be
Boat might be
particularly suitable
Notional
particularly suitable
Fiscal
Navy’s
for 2-, 3-, or 4-year
alternative
for 2-, 3-, or 4-year
year
Schedule
incremental funding
schedule
incremental funding
2019

1
X
2020



2021 1
X
1
X
2022



2023

1
X
2024 1
X


2025

1
X
2026 1



2027 1

1

2028 1

1

2029 1

1

2030 1

1

2031 1

1
X
2032 1



2033 1
X
1
X
2034 1
X


2035 1
X
1
X
2036



2037

1
X
Total
12 12

(...continued)
three Ford (CVN-78) class carriers (i.e., CVN-78, CVN-79, and CVN-80); the authority was granted in §121 of the
FY2007 defense authorization act [H.R. 5122/P.L. 109-364 of October 17, 2006]).
87 Congress funded the procurement of two aircraft carriers (CVNs 72 and 73) in FY1983, and another two (CVNs 74
and 75) in FY1988. Although CVN-73 was funded in FY1983, it was built on a schedule consistent with a carrier
funded in FY1985; although CVN-75 was funded in FY1988, it was built on a schedule consistent with a carrier funded
in FY1990 or FY1991.
Congressional Research Service
26

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Source: Navy’s current plan is taken from the Navy’s FY2015 budget submission. Potential alternative plan
prepared by CRS.
Notes: Notional alternative schedule could depend on Navy’s ability to carefully husband the use of the nuclear
fuel cores on the last two Ohio-class SSBNs, so as to extend the service lives of these two ships by one or two
years. Alternatively, Congress could grant the Navy the authority to begin construction on the 11th boat a year
before its nominal year of procurement, and the 12th boat two years prior to its nominal year of procurement.
Under Navy’s schedule, the boat to be procured in FY2033 might be particularly suitable for 4-year incremental
funding, and boat to be procured in FY2034 might be particularly suitable for 3- or 4-year incremental funding.
A December 19, 2011, press report states:
The Office of Management and Budget’s Nov. 29[, 2011,] passback memorandum to the
Defense Department [regarding the FY2013 DOD budget] warns that the effort to build
replacements for aging Ohio-class submarines is not exempt from rules requiring each new
vessel to be fully funded in a single year....
Spreading the cost of a big-ticket ship over more than one year—an approach referred to as
“incremental funding”—is only allowed when a program meets three criteria, OMB writes....
“OMB does not anticipate that the OHIO Replacement program will meet these criteria,” the
passback memo states.88
Procuring SSBN(X)s Outside Navy’s Shipbuilding Budget
Some observers have suggested funding the procurement of SSBN(X)s outside the Navy’s
shipbuilding budget, so as to preserve Navy shipbuilding funds for other Navy shipbuilding
programs. There would be some precedent for such an arrangement:
• Construction of DOD sealift ships and Navy auxiliary ships has been funded in
recent years in the National Defense Sealift Fund (NDSF), a part of DOD’s
budget that is outside the Shipbuilding and Conversion, Navy (SCN)
appropriation account, and also outside the procurement title of the DOD
appropriations act.
• Most spending for ballistic missile defense (BMD) programs (including
procurement-like activities) is funded through the Defense-Wide research and
development account rather than through the research and development and
procurement accounts of the individual military services.
A rationale for funding DOD sealift ships in the NDSF has been that DOD sealift ships perform a
transportation mission that primarily benefits services other than the Navy, and therefore should
not be forced to compete for funding in a Navy budget account that funds the procurement of
ships central to the Navy’s own missions. (As part of its proposed FY2015 budget, the Navy is
proposing to disestablish the NDSF and fund the construction of Navy auxiliary ships back to the
SCN account.89) A rationale for funding BMD programs together in the Defense-Wide research
and development account is that this makes potential tradeoffs in spending among various BMD
programs more visible and thereby helps to optimize the use of BMD funding.

88 Christopher J. Castelli, “White House Opposes Incremental Funding For Multibillion-Dollar Sub,” Inside the Navy,
December 19, 2011.
89 For further discussion, see CRS Report R43546, Navy TAO(X) Oiler Shipbuilding Program: Background and Issues
for Congress
, by Ronald O'Rourke.
Congressional Research Service
27

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

As a reference tool for better understanding DOD spending, DOD includes in its annual budget
submission a presentation of the DOD budget reorganized into 11 program areas, of which one is
strategic forces. The FY2015 budget submission, for example, shows that about $11.7 billion is
requested for strategic forces for FY2015.90
Supporters of funding the procurement of SSBN(X)s outside the Navy’s shipbuilding budget
might argue that this could help protect funding for other Navy shipbuilding programs. They
could also argue that creating a new budget account for strategic nuclear forces of all kinds could
help DOD better view potential tradeoffs in spending for various strategic nuclear forces
programs and thereby help DOD better optimize the use of strategic forces funding.
Skeptics of funding the procurement of SSBN(X)s outside the Navy’s shipbuilding budget could
argue that it might do little to protect funding for other Navy shipbuilding programs, because if
DOD were to move the SSBN(X)s out of the Navy’s shipbuilding budget, DOD might also
remove the funding that was there for the SSBN(X)s. They might also argue that shifting
SSBN(X)s out of the Navy’s shipbuilding budget would make it harder to track and maintain
oversight over Navy shipbuilding activities, and that creating a new budget account for strategic
nuclear forces of all kinds could endanger the Ohio replacement program by making it more
visible to those who might support reduced spending on nuclear-weapon-related programs.
A March 11, 2010, press report stated: “The massive cost of replacing the Navy’s nuclear ballistic
missile submarines will be shouldered in the coming years by diverting funds from other naval
and Pentagon programs and perhaps by boosting the defense budget, but the program should not
get its own special funding stream, according to Deputy Defense Secretary William Lynn.”91
A March 28, 2011, press report stated that SSBN(X)s
will be funded within the shipbuilding account, not in a separate account as the sea service’s
top admiral has advocated, according to Pentagon acquisition chief Ashton Carter.
“It’s been in the shipbuilding account and our plan is it’s going to stay in the shipbuilding
account,” Carter told Inside the Pentagon March 21 in a brief interview. “We just have to
make it so that it is digestible for the Navy in the context of other shipbuilding needs. And
we want the same things they want. We can manage through that path for decades.”92
At an April 13, 2011, hearing on DOD acquisition before the Defense subcommittee of the House
Appropriations Committee, the following exchange took place:
REPRESNTATIVE CRENSHAW: Dr. Carter, I want to ask about Abrams tanks, kind of the
modification of the start and stop. But – but real quick, we – we talked about the ballistic

90 Department of Defense, National Defense Budget Estimates For FY 2015, April 2014, Table 6-4, “Department of
Defense TOA by Program,” page 98. See also Table 6-5 on page 100, which presents the same data in constant FY2015
dollars. The other 10 program areas in addition to strategic forces are general purpose forces; C3, intelligence and
space; mobility forces; guard and reserve forces; research and development; central supply and management; training,
medical and other; administration and associated; support of other nations; and special operations forces. (A 12th
category—other—shows relatively small amounts of funding.)
91 Christopher J. Castelli, “Lynn: Navy, DOD To Shoulder SSBN(X) Cost Without Separate Fund,” Inside the
Pentagon
, March 11, 2010.
92 Christopher J. Castelli, “Carter: Multibillion-Dollar Nuclear Subs Will Stay In Shipbuilding Account,” Inside the
Navy
, March 28, 2011.
Congressional Research Service
28

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

missiles submarines and was encouraged to hear that we’ve got a handle on the cost. We
spent a lot of money on the development. I think we start construction in 2019.
But even – even if we – you end up with a boat that costs $5 billion and we have 12 of those,
that’s $60 billion. And we talked about the difficult choices that’s going to present in terms
of surface ships, I just want to pose the question, if – is it under consideration to consider
those submarines like a national asset?
For instance, we – we fund the ballistic missile defense outside of the budget of the services
because it’s truly a national asset. And I wondered, it’s a lot of money. And – and it’s – those
– those submarines are one-third of our nuclear triad. Is consideration being given to
consider those being funded as a national asset outside the ship-building program which
would take away some of the difficult choice in terms of the service ships versus the
submarines?
ASHTON CARTER, UNDER SCRETARY OF DEFENSE FOR ACQUISITON,
TECHNOLOLGY, AND LOGISTICS: The – the best I can do is cite something that
Secretary Gates said which is that he had considered that, then was not attracted to that idea.
I’m paraphrasing, but I think their basic reason was, “Look, the money is going to show up
somewhere anyway. And we’re not going to hide $60 billion by re-labeling. So, let’s keep it
in a way we’ve – we’ve done it.”
And I think it was the gist of the secretary’s response. So – so, Secretary Gates had
considered it and was not attracted to the idea. Although he – he thoroughly recognizes the
premise of your question which is there’s a lot of money. And as a practical matter it will
compete with those things in the defense budget.
And that’s one of the reasons why we’ve got to get the cost down.93
An August 1, 2011, press report stated:
[Admiral Jonathan Greenert, who became the Chief of Naval Operations in September 2011,
told] Sen. Jack Reed (D-R.I.) discussions are still underway in the Pentagon to have the
defense-wide budget share with the Navy some of the costs of the Ohio-class SSBN(X) next-
generation ballistic missile submarine, which is projected to dominate the Navy’s
shipbuilding budget starting at the end of this decade. “If confirmed, I intend to try to
continue those discussions,” Greenert [said] during his confirmation hearing. “In the [2020s],
we have a phenomenon, an unfortunate one, where many of the ships built in the [1980s] will
now come due for retirement. That’s right when the Ohio replacement comes in. So we’ll
work very hard to make sure we got the requirements right. We’ll work very hard with the
acquisition community to drive that cost down but we may even so need some assistance, I
believe, in the shipbuilding budget if we’re going to meet our goals.”94
At a March 29, 2012, hearing before the Senate Armed Services Committee to consider the
nominations of several people for various DOD positions, the following exchange occurred:
SENATOR JACK REED: Secretary Kendall, one of the issues that we have talked about is
the nuclear infrastructure to create and maintain nuclear devices. There is another big part of
that. That is the delivery platforms. And where you are facing a significant set of challenges,
the lead procurement item is the Ohio class replacement submarine, but the Air Force is

93 Source: Transcript of hearing.
94 “Boomer Sharing,” Defense Daily, August 1, 2011: 1-2.
Congressional Research Service
29

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

talking about the need ultimately to replace their fleet. You have to make, I presume,
improvements in ground-based systems.
When the services look individually at the cost—and I have got more fidelity with respect to
the Navy—these are very, very expensive platforms. They crowd out spending for other
necessary ships in the Navy’s case. And I think there is a very compelling case because this
is a strategic issue that the services alone should not fundamentally share the burden, that in
fact there has to be some DOD defense money because of the strategic nature committed to
help the services. And I think the most immediate situation is in the Navy.
Can you reflect on that and share your views?
Mr. FRANK KENDALL III.95 Yes, Senator Reed. The Department [of Defense] basically
builds its budget as a budget for the entire Department, and we do make tradeoffs that
sometimes cut across the Services? [sic] lines in order to do that. Last fall, what we went
through was a period where we formulated the strategy, the Strategic Guidance that we
published, and that was used to guide the budget process. So that was all done with regard to
priorities to support the strategy. It was not about the service portfolio specifically. At the
end, we came to a decision about the best mix of systems to do that, and we tried to take into
account the long-term issues that you alluded to which include the 30-year shipbuilding plan
which we just sent over which does show that the Ohio replacement does add substantially to
that account. We are going to have to find some other way besides the shipbuilding account
obviously to pay that bill.
We have put cost caps on both the SSBN–X, the Ohio replacement, and on the new bomber
in order to try to control the costs and keep them within an affordable range. But there is
going to be a challenge to us to do this, and it has to be done on a defense-wide DOD basis.96
At an April 24, 2013, hearing before the Defense subcommittee of the Senate Appropriations
Committee, the following exchange occurred:
SENATOR JACK REED (continuing): Let me just shift to another program which is critical
to our national security. That’s the Ohio-class replacement. And in fact, given its recognized
ability to avoid detection, its invulnerability, it becomes more and more critical to the triad.
And I'm wondering, Mr. Secretary and CNO, if you can comment on its growing importance
in terms of the—of the need for it at sea, the replacement?
SECRETARY OF THE NAVY RAY MABUS: Well, that need has been amply documented,
justified. We are on track with all the R&D and early development work to begin
construction in 2021 for the first boat to put to sea in 2029, which would be exactly on
schedule. We're also working very closely with—with our partners, the British, on the
common missile compartment, since they—they are buying for their successor class the
same missile compartment using the same missiles.
But the—one word of caution. We are on track today. It’s a large program. It’s an expensive
program. And actually two words of caution. One is sequestration holds the potential to—to
upset this timeline in a fairly dramatic way.

95 Kendall at the time of the hearing was nominated for the position of Under Secretary of Defense for Acquisition,
Technology and Logistics (USD ATL)—the DOD acquisition executive. He was subsequently confirmed for the
position.
96 Transcript of hearing.
Congressional Research Service
30

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

And second, as we get closer to time, we—there will have to be, as I believe Deputy
Secretary of Defense Carter said in his transmittal of the shipbuilding report last year, a
discussion in terms of the Ohio-class replacement and the rest of our shipbuilding programs
in terms of how we finance this. Because for a period of time there, building these Ohio-class
replacements, as I said, very expensive, incredibly important program, but we need to keep
the rest of our shipbuilding base intact.
REED: If I can follow up, and Admiral Greenert, is there a possibility that if we slip this, it
will have a point at which we cannot have as many ballistic missile submarines at sea as we
need for deterrence, and for strategic posturing?
ADMIRAL JONATHAN GREENERT, CHIEF OF NAVAL OPERATIONS: That’s feasible
but unacceptable, I'd say, Senator. Yes, we—so we can't slip it. And the secretary had it
right. People ask me what is my number-one program of concern, and I would tell you it’s
the Ohio replacement program. I look at that more than any other one.
REED: Well thank you, Admiral. Just one point is that this is part of a strategic—in fact, I
would say the—the most survivable leg of the triad. And it—it’s not just a Navy program.
It’s a national program. And I wonder if there’s any consideration of supporting the Navy’s
efforts with—with funds that are more generically defense rather than more specifically
Navy.
MABUS: I think that was the conversation I was referring to.97
At a May 8, 2013, hearing on Navy shipbuilding programs before the Seapower subcommittee of
the Senate Armed Services Committee, the following exchange occurred:
SENATOR JACK REED, CHAIRMAN: Senator McCain pointed out, I think, appropriately
that we've got several—many challenges. One is to have an affordable SSBN replacement
for the Ohio class and the other is to maintain carrier production better at a level that we can
afford.
With respect to the Ohio class specifically replacement, since it is a strategic asset because of
its contact with the—it’s part of a triad, are there any attempts to provide—supplement a
funding to the Navy shipbuilding budget because of the strategic dimension or are those talks
progressed or are they have been undertaken in DOD?
SEAN STACKLEY, ASSISTANT SECRETARY OF THE NAVY FOR RESEARCH,
DEVELOPMENT, AND ACQUISITION: Sir, I can answer straightly as those talks have not
progressed. (Inaudible) of that.
REED: OK, that’s an interesting comment. Thank you very much.
STACKLEY: Let me go ahead and expand then.
REED: Yeah.
STACKLEY: The...
REED: That’s a wrap. That was...

97 Transcript of hearing.
Congressional Research Service
31

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

STACKLEY: Well, the Navy’s plan in the fit-up [sic: FYDP], we think that the budget that
we have assigned to the numbers that we plan on procuring in the fit-up [sic: FYDP] is
within our reach if you park sequestration momentarily.
But when you get outside of the fit-up [FYDP], now you're quickly answering into the period
where the Ohio Replacement dominates our shipbuilding plan. We spent a lot of effort over
the last couple of years to go after the requirements to drive affordability through the
requirements process and also through the design process. So it’s something that started at
about a $7 billion a unit cost for the Ohio Replacement.
Current estimate is in the $5.6 billion [range]. We are working through the design process to
get it down with an objective of about $5 billion—$4.9 billion. That by itself does not bring
the shipbuilding plan within the reach of affordability.
So if you look at that period of time and you look at the budget of forecast in that period of
time, you have to go back to the period of the 80’s when we are building up the 600-ship
Navy to see those type of shipbuilding budget levels that are projected for the force that is
laid out in the shipbuilding plan. And that is beyond our shipbuilding TOA by any method of
extrapolation.
REED: And that is assuming that we can stabilize the cost in the other shipbuilding
programs.
STACKLEY: Yes, Sir.98
At a September 12, 2013, hearing before the Seapower and Projection Forces subcommittee of
the House Armed Services Committee on undersea warfare, a Navy official testified that
... I do think it’s important for the country to look at this [Ohio replacement effort] as a
requirement above the Navy’s [own requirements], [as] a strategic level requirement[,] and
we ought to give it the gravity of attention and focus and insulation from the pressures of
sequestration.
That said, the control of those resources must remain resident within the Navy with the
control of our acquisition community. We know how to build submarines, we know how to
oversee the building of submarines, [and] Electric Boat, (inaudible)99 best submarine ship
builders in the world.
We need to be able to make sure that if we come up with a creative, you know, strategic
account [in the budget] for this [effort] that it’s still the Navy and the ship building team that
has the control and authority over those moneys as we—as we do this recapitalization to
make it as affordable as possible.100

98 Transcript of hearing.
99 A press report indicates that this inaudible portion includes these words: “[and] Huntington Ingalls—the Navy’s two
submarine builders—are some of the.” (Lee Hudson, “Navy Asks Congress To Set Up $60B Supplemental Fund For
SSBN(X),” Inside the Navy, September 16, 2013.
100 Transcript of hearing. (Spoken remarks of Rear Admiral Richard Breckenridge. The other witness at the hearing was
Rear Admiral David Johnson.)
Congressional Research Service
32

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Reducing the Planned Number of SSBN(X)s
Some observers over the years have advocated or presented options for an SSBN force of fewer
than 12 SSBNs. A November 2013 CBO report on options for reducing the federal budget deficit,
for example, presented an option for reducing the SSBN force to eight boats as a cost-reduction
measure.101 Earlier CBO reports have presented options for reducing the SSBN force to 10 boats
as a cost-reduction measure.102 CBO reports that present such options also provide notional
arguments for and against the options. A June 2010 report by a group known as the Sustainable
Defense Task Force recommends reducing the SSBN force to 7 boats;103 a September 2010 report
from the Cato Institute recommends reducing the SSBN force to 6 boats,104 and a September 2013
report from a group organized by the Stimson Center recommends reducing the force to 10
boats.105
Views on whether a force of fewer than 12 SSBN(X)s would be adequate could depend on,
among other things, assessments of strategic nuclear threats to the United States and the role of
SSBNs in deterring such threats as a part of overall U.S. strategic nuclear forces, as influenced by
the terms of strategic nuclear arms control agreements.106 Reducing the number of SSBNs below
12 could also raise a question as to whether the force should continue to be homeported at both
Bangor, WA, and Kings Bay, GA, or consolidated at a single location.
U.S. strategic nuclear deterrence plans require a certain number of strategic nuclear warheads to
be available for use on a day-to-day basis. After taking into account warheads on the other two
legs of the strategic nuclear triad, the number of warheads on an SSBN’s SLBMs, and factors
independent of the number of warheads on the SLBMs, this translates into a requirement for a
certain number of SSBNs to be on station (i.e., within range of expected targets) in Pacific and
Atlantic waters at any given moment. The SSBN force is sized to support this requirement. Given
the time needed for at-sea training operations, restocking SSBNs with food and other
consumables, performing maintenance and repair work on the SSBNs, and transiting to and from
deterrent patrol areas, only a fraction of the SSBN force can be on patrol at any given moment.
The Navy’s position (see “Planned Procurement Quantity: 12 SSBN(X)s to Replace 14 Ohio-
Class Boats” in “Background”) is that the requirement for having a certain number of SSBNs on
patrol at any given moment translates into a need for a force of 14 Ohio-class boats, and that this
requirement can be met in the future by a force of 12 SSBN(X)s.

101 Congressional Budget Office, Options for Reducing the Deficit: 2014 to 2023, November 2013, pp. 68-69.
102 See, for example, Congressional Budget Office, Rethinking the Trident Force, July 1993, 78 pp.; and Congressional
Budget Office, Budget Options, March 2000, p. 62.
103 Debt, Deficits, and Defense, A Way Forward[:] Report of the Sustainable Defense Task Force, June 11, 2010, pp.
19-20.
104 Benjamin H. Friedman and Christopher Preble, Budgetary Savings from Military Restraint, Washington, Cato
Institute, September 23, 2010 (Policy Analysis No. 667), pp. 8.
105 Strategic Agility: Strong National Defense for Today’s Global and Fiscal Realities, Stimson, Washington, DC,
2013, p. 29. (Sponsored by the Peter G. Peterson Foundation, Prepared by Stimson, September 2013.)
106 For further discussion, see CRS Report RL33640, U.S. Strategic Nuclear Forces: Background, Developments, and
Issues
, by Amy F. Woolf.
Congressional Research Service
33

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Construction Shipyard(s)
Another potential issue for Congress regarding the Ohio replacement program is which shipyard
or shipyards would build SSBN(X)s. Two U.S. shipyards are capable of building nuclear-powered
submarines—General Dynamics’ Electric Boat Division (GD/EB) of Groton, CT, and Quonset
Point, RI, and Newport News Shipbuilding (NNS), of Newport News, VA, which forms part of
Huntington Ingalls Industries (HII). GD/EB’s primary business is building nuclear-powered
submarines; it can also perform submarine overhaul work. NNS’s primary lines of business are
building nuclear-powered aircraft carriers, building nuclear-powered submarines, and performing
overhaul work on nuclear-powered aircraft carriers.
Table 5 shows the numbers of SSBNs built over time by GD/EB, NNS, and two government-
operated naval shipyards (NSYs)—Mare Island NSY, located in the San Francisco Bay area, and
Portsmouth NSY of Portsmouth, NH, and Kittery, ME. Mare Island NSY is no longer in
operation. NSYs have not built new Navy ships since the early 1970s; since that time, they have
focused solely on overhauling and repairing Navy ships.
Table 5. Construction Shipyards of U.S. SSBNs
George
Lafayette/
Washington
Ethan Allen
Benjamin
Ohio
(SSBN-598)
(SSBN-608)
Franklin (SSBN-
(SSBN-726)

class
class
616/640) class
class
Fiscal years procured
FY58-FY59
FY59 and FY61
FY61-FY64
FY77-FY91
Number built by GD/EB
2
2
13
18
Number built by NNS
1
3
10

Number built by Mare Island NSY
1

6

Number built by Portsmouth NSY
1

2

Total number in class
5
5
31
18
Source: Prepared by CRS based on data in Norman Polmar, The Ships and Aircraft of the U.S. Fleet, Annapolis,
Naval Institute Press, various editions. NSY means naval shipyard.
Notes: GD/EB was the builder of the first boat in all four SSBN classes. The George Washington-class boats
were procured as modifications of SSNs that were already under construction. A total of 18 Ohio-class SSBNs
were built; the first four were converted into SSGNs in 2002-2008, leaving 14 in service as SSBNs.
As can be seen in the table, the Ohio-class boats were all built by GD/EB, and the three previous
SSBN classes were built partly by GD/EB, and partly by NNS. GD/EB was the builder of the first
boat in all four SSBN classes. The most recent SSBNs built by NNS were the George C.
Marshall
(SSBN-654) and George Washington Carver (SSBN-656), which were
Lafayette/Benjamin Franklin-class boats that were procured in FY1964 and entered service in
1966.
There are at least five basic possibilities for building SSBN(X)s:
build all SSBN(X)s at GD/EB—the approach that was used for building the
Ohio-class SSBNs;
build all SSBN(X)s at NNS;
Congressional Research Service
34

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

build some SSBN(X)s GD/EB and some at NNS—the approach that was used
for building the George Washington-, Ethan Allen-, and Lafayette/Benjamin
Franklin-class SSBNs;
build each SSBN(X) jointly at GD/EB and NNS, with final assembly of the
boats alternating between the yards—the approach currently being used for
building Virginia-class SSNs;107 and
build each SSBN(X) jointly at GD/EB and NNS, with one yard—either
GD/EB or NNS—performing final assembly on every boat.
In assessing these five approaches, policy makers may consider a number of factors, including
their potential costs, their potential impacts on employment levels at GD/EB and NNS, and the
relative value of preserving SSBN-unique construction skills (such as those relating to the
construction and installation of SLBM compartments) at one shipyard or two. The relative costs
of these five approaches could depend on a number of factors, including the following:
• each yard’s share of SSBN(X) production work (if both yards are involved);
• the number of SSNs procured during the years of SSBN(X) procurement (which
can affect economies of scale in submarine production);
• whether the current joint-production arrangement for the Virginia class remains
in effect during those years;108 and
• the volume of non-submarine-construction work performed at the two shipyards
during these years, which would include in particular aircraft carrier construction
and overhaul work at NNS.
A January 12, 2011, press report stated:

107 Under the joint-production arrangement for Virginia-class boats, GD/EB builds certain parts of each boat, NNS
builds certain other parts of each boat, and the two yards take turns building the reactor compartment and performing
final assembly work. GD/EB is the final assembly yard for the first Virginia-class boat, the third one, and so on, while
NNS is the final assembly yard for the second boat, the fourth one, and so on. The arrangement provides a roughly 50-
50 split in profits between the two firms for the production of Virginia-class SSNs. The agreement governing the joint-
production arrangement cannot be changed without the consent of both firms. Virginia-class SSNs are the first U.S.
nuclear-powered submarines to be built jointly by two shipyards; all previous U.S. nuclear-powered submarines were
built under the more traditional approach of building an entire boat within a single yard.
The Virginia-class joint-production arrangement was proposed by the two shipyards, approved by the Navy, and then
approved by Congress as part of its action on the FY1998 defense budget. A principal goal of the arrangement is to
preserve submarine-construction skills at two U.S. shipyards while minimizing the cost of using two yards to build a
class of submarines that is procured at a relatively low rate of one or two boats per year. Preserving submarine-
construction skills at two yards is viewed as a hedge against the possibility of operations at one of the yards being
disrupted by a natural or man-made disaster.
The joint-production arrangement is more expensive than single-yard strategy of building all Virginia-class boats at one
shipyard (in part because the joint-production strategy splits the learning curve for reactor compartment construction
and final assembly work on Virginia-class SSNs), but it is less expensive than a separate-yard strategy of building
complete Virginia-class separately at both yards (in part because a separate-construction strategy splits the learning
curve for all aspects of Virginia-class construction work, and because, in the absence of other submarine-construction
work, a procurement rate of one or two Virginia-class boats per year is viewed as insufficient to sustain a meaningful
competition between the two yards for contracts to build the boats).
108 The agreement governing the joint-production arrangement for the Virginia class cannot be changed without the
consent of both yards.
Congressional Research Service
35

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

While the [SSBN(X)] submarine-building contracts would likely be competitively bid,
[Electric Boat President John] Casey says he doubts any other company—even its attack-
submarine-building partner Northrop Grumman [now NNS]—can secure the work. Electric
Boat built the existing Ohio-class fleet.
“We have every intention of building every one of those ships,” he says. “There’s no one
else [who was] involved in designing and building that [Ohio-class] platform.109 It’s up to us
to convince people we can do it at the right price.”110
Legislative Activity for FY2015
Bills introduced in the 113th Congress that would, among other things, limit the Ohio replacement
program to no more than eight boats include H.R. 505, H.R. 1506, H.R. 4107, and S. 2070.
FY2015 Funding Request
As shown in Table 3, the Navy’s proposed FY2015 budget requests $1,219.3 million in research
and development funding for the Ohio replacement program, including $370.0 million for Project
3219 (SSBN[X] reactor plant) in PE0603570N (Advanced Nuclear Power Systems), $812.8
million for Project 3220 (SBSD [Sea-Based Strategic Deterrent] Advanced Submarine System
Development) in PE0603595N (Ohio Replacement), and $36.5 million for Project 3237 (Launch
Test Facility) in PE0603595N (Ohio Replacement).
FY2015 National Defense Authorization Act (H.R. 4435)
House
The House Armed Services Committee, in its report (H.Rept. 113-446 of May 13, 2014) on H.R.
4435, recommends approving the Navy’s requests for FY2015 research and development funding
for the Ohio replacement program. (Page 427, lines 044 and 049.)
Section 1003 of H.R. 4435 as reported states (see in particular the part in bold):
SEC. 1003. AUTHORITY TO TRANSFER FUNDS TO THE NATIONAL NUCLEAR
SECURITY ADMINISTRATION TO SUSTAIN NUCLEAR WEAPONS
MODERNIZATION AND NAVAL REACTORS.
(a) Transfer Authorized- If the amount authorized to be appropriated for the weapons
activities of the National Nuclear Security Administration under section 3101 or otherwise
made available for fiscal year 2015 is less than $8,700,000,000 (the amount projected to be
required for such activities in fiscal year 2015 as specified in the report under section 1251 of
the National Defense Authorization Act for Fiscal Year 2010 (P.L. 111-84; 123 Stat. 2549)),

109 The bracketed words in this sentence were inserted by CRS following a February 8, 2011, telephone call to CRS
from Electric Boat in which Electric Boat stated that sentence in Mr. Casey’s quote refers to Electric Boat being the
sole designer and builder of the current Ohio-class SSBNs.
110 Michael Fabey, “Electric Boat Recruits Engineers For Ohio-Class Sub Replacement,” Aerospace Daily & Defense
Report
, January 12, 2011: 1-2.
Congressional Research Service
36

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

the Secretary of Defense may transfer, from amounts authorized to be appropriated for
the Department of Defense for fiscal year 2015 pursuant to this Act, to the Secretary of
Energy an amount, not to exceed $150,000,000, to be available only for naval reactors
or weapons activities of the National Nuclear Security Administration.

(b) Notice to Congress- In the event of a transfer under subsection (a), the Secretary of
Defense shall promptly notify Congress of the transfer, and shall include in such notice the
Department of Defense account or accounts from which funds are transferred.
(c) Transfer Mechanism- Any funds transferred under this section shall be transferred in
accordance with established procedures for reprogramming under section 1001 or successor
provisions of law.
(d) Construction of Authority- The transfer authority provided under subsection (a) is in
addition to any other transfer authority provided under this Act.
The transfer provided by this provision would permit DOD funds to be used to address the $150
million funding shortfall in the Department of Energy Budget that resulted in, among other
things, the $11 million shortfall in funding for the procurement of the high-performance computer
needed to design the nuclear fuel core for Ohio replacement boats.
Section 1022 of H.R. 4435 as reported states:
SEC. 1022. NATIONAL SEA-BASED DETERRENCE FUND.
(a) In General-
(1) ESTABLISHMENT OF FUND- Chapter 131 of title 10, United States Code, is amended
by inserting after section 2218 the following new section:
`Sec. 2218a. National Sea-Based Deterrence Fund
`(a) Establishment- There is established in the Treasury a fund to be known as the `National
Sea-Based Deterrence Fund’.
`(b) Administration of Fund- The Secretary of Defense shall administer the Fund consistent
with the provisions of this section.
`(c) Fund Purposes- (1) Funds in the Fund shall be available for obligation and expenditure
only for the advanced procurement or construction of nuclear-powered strategic ballistic
missile submarines.
`(2) Funds in the Fund may not be used for a purpose or program unless the purpose or
program is authorized by law.
`(d) Deposits- There shall be deposited in the Fund all funds appropriated to the Department
of Defense for fiscal years after fiscal year 2016 for the advanced procurement or
construction of nuclear-powered strategic ballistic missile submarines.
`(e) Expiration of Funds After 10 Years- No part of an appropriation that is deposited in the
Fund pursuant to subsection (d) shall remain available for obligation more than 10 years after
the end of the fiscal year for which appropriated except to the extent specifically provided by
law.
Congressional Research Service
37

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

`(f) Budget Requests- Budget requests submitted to Congress for the Fund shall separately
identify the amount requested for programs, projects, and activities for the construction
(including the design of vessels) of nuclear-powered strategic ballistic missile submarines.
`(g) Definitions- In this section:
`(1) The term `Fund’ means the National Sea-Based Deterrence Fund established by
subsection (a).
`(2) The term `nuclear-powered strategic ballistic missile submarine’ means any nuclear-
powered submarine owned, operated, or controlled by the Department of Defense with the
primary mission of launching nuclear-armed ballistic missiles.’.
(2) CLERICAL AMENDMENT- The table of sections at the beginning of such chapter is
amended by inserting after the item relating to section 2218 the following new item:
`2218a. National sea-based deterrence fund.’.
(b) Transfer Authority-
(1) IN GENERAL- Subject to paragraph (2), and to the extent provided in appropriations
Acts, the Secretary of Defense may transfer to the National Sea-Based Deterrence Fund
established by section 2218a of title 10, United States Code, as added by subsection (a)(1),
amounts not to exceed $3,500,000,000 from unobligated funds authorized to be appropriated
for fiscal years 2014, 2015, or 2016 for the Navy for shipbuilding and conversion, Navy, for
the advanced procurement or construction, purchase, or alteration of nuclear-powered
strategic ballistic missile submarines. The transfer authority provided under this paragraph is
in addition to any other transfer authority provided to the Secretary of Defense by law.
(2) AVAILABILITY- Funds transferred to the National Sea-Based Deterrence Fund
pursuant to paragraph (1) shall remain available for the same period for which the transferred
funds were originally appropriated.
H.Rept. 113-446 states:
Naval Reactors
The budget request contained $1.4 billion for the Naval Reactors program. Naval Reactors is
responsible for all aspects of naval nuclear propulsion efforts, including reactor plant
technology design and development, reactor plant operation and maintenance, and reactor
retirement and disposal. The program ensures the safe and reliable operation of reactor plants
in nuclear-powered submarines and aircraft carriers that comprise over 40 percent of the
Navy’s major combatants.
The committee is concerned that, due to funding challenges, Naval Reactors may be unable
to execute key aspects of its mission to enable the nuclear Navy. In particular, in testimony
before the Subcommittee on Strategic Forces on April 8, 2014, the Director of the Naval
Nuclear Propulsion Program noted that the program delayed purchase of a high-performance
computer, “that is needed to deliver the Ohio-class Replacement reactor design on time ...
Cancelling this computer purchase in fiscal year 2014 has resulted in at least a 6–month
delay to reactor core manufacturing, impacting the Ohio-class replacement lead-ship
construction schedule.” The Director also noted that, “Naval Reactors will be required to
shut down one of the two prototype reactor plants in upstate New York during the second
quarter of fiscal year 2015 due to insufficient maintenance funding. This shutdown results in
Congressional Research Service
38

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

450 sailors that will not be trained and will not be sent to the Fleet next year.” The
committee believes that these impacts, if realized, would be unacceptable to Navy
operations. Most critically, a 6-month delay to the Ohio-class replacement submarine
jeopardizes the Navy’s ability to fulfill U.S. Strategic Command’s at-sea deterrence
requirements in the 2030s. The committee notes that the Director has stated that the full
fiscal year 2015 budget request for Naval Reactors is essential to mitigating these impacts.
The committee recommends $1.4 billion for the Naval Reactors program, an increase of
$10.0 million the budget request. (Page 357)
Senate
The Senate Armed Services Committee, in its report (S.Rept. 113-176 of June 2, 2014) on S.
2410, recommends approving the Navy’s requests for FY2015 research and development funding
for the Ohio replacement program. (Page 357, lines 44 and 49.) The report also recommends $100
million for a National Sea-Based Deterrence Fund (page 161; see discussion below).
Section 1002 of S. 2410 as reported states:
SEC. 1002. NATIONAL SEA-BASED DETERRENCE FUND.
(a) Establishment of Fund- Chapter 131 of title 10, United States Code, is amended by
inserting after section 2218 the following new section:
`Sec. 2218a. National Sea-Based Deterrence Fund
`(a) Establishment- There is established in the Treasury of the United States a fund to be
known as the `National Sea-Based Deterrence Fund’.
`(b) Administration of Fund- The Secretary of Defense shall administer the Fund consistent
with the provisions of this section.
`(c) Fund Purposes- Funds in the Fund shall be available for obligation and expenditure only
for construction (including design of vessels), purchase, alteration, and conversion of
national sea-based deterrence vessels.
`(d) Deposits- There shall be deposited in the Fund all funds appropriated to the Department
of Defense for construction (including design of vessels), purchase, alteration, and
conversion of national sea-based deterrence vessels.
`(e) Limitation- The construction, purchase, alteration, or conversion of national sea-based
deterrence vessels with funds in the Fund pursuant to subsection (c) shall be conducted in
United States shipyards.
`(f) Expiration of Funds After 5 Years- No part of an appropriation that is deposited in the
Fund pursuant to subsection (d) shall remain available for obligation more than five years
after the end of fiscal year for which appropriated except to the extent specifically provided
by law.
`(g) Budget Requests- Budget requests submitted to Congress for the Fund shall separately
identify the amount requested for programs, projects, and activities for construction
(including design of vessels), purchase, alteration, and conversion of national sea-based
deterrence vessels.
Congressional Research Service
39

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

`(h) Definitions- In this section:
`(1) The term `Fund’ means the National Sea-Based Deterrence Fund established by
subsection (a).
`(2) The term `national sea-based deterrence vessel’ means any vessel owned, operated, or
controlled by the Department of Defense that carries operational intercontinental ballistic
missiles.’.
(b) Clerical Amendment- The table of sections at the beginning of chapter 131 of such title is
amended by inserting after the item relating to section 2218 the following new item:
`2218a. National Sea-Based Deterrence Fund.’.
Regarding Section 1002, S.Rept. 113-176 states:
National Sea-Based Deterrence Fund (sec. 1002)
The committee recommends a provision that would establish a National Sea-Based
Deterrence Fund. This fund would be responsible for obligation and expenditure of funds for
construction (including design of vessels), purchase, alteration, and conversion of strategic
missile submarines.
The committee recognizes that there will be challenges to affordability as the Department of
the Navy and the Department of Defense seek to replace the Ohio-class ballistic missile
submarines as they approach the end of their useful service lives. In testimony before the
committee, the Chief of Naval Operations stated, “I am increasingly concerned about our
ability to fund the Ohio Replacement ballistic missile submarine (SSBN) program—our
highest priority program—within our current and projected resources.”
The committee believes that establishing a separate fund for pursuing construction of the
Ohio-class replacement submarines is a first important step to ensuring that the program has
the appropriate visibility within the administration and within Congress to ensure that the
Ohio Replacement Program moves forward with the appropriate level of visibility and
management attention.
The committee recommends an authorization of $100.0 million for the fund. (Page 161)
S.Rept. 113-176 also states:
Ohio Replacement Program
The committee remains committed to the full funding of the Ohio-class Replacement
Program (ORP) and supports the research and development activities budgeted in fiscal year
2015. The committee notes that in fiscal year 2014, the Department of Energy budget for the
National Nuclear Security Administration, and specifically the Naval Reactors Office, fell
below requested levels. One reported impact of this shortfall was insufficient funding to
support a planned capital equipment procurement for High Performance Computers (HPC)
that are necessary to complete the reactor core design for ORP. In testimony before this
committee, Chief of Naval Operations, Admiral Jonathan Greenert, stated, “The program has
to stay on track. We have no slack in this program,” and he has since indicated the possibility
of a military interdepartmental purchase request (MIPR) to reconcile the Naval Reactors
funding shortfall.
Congressional Research Service
40

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

The committee remains concerned that a lack of funding for essential equipment and
technologies for nuclear reactor core development could further delay this critical program
and jeopardize the future of our sea-based strategic deterrent. Therefore, the committee
requires the Secretary of the Navy to submit a report to the congressional defense
committees on the status of the ORP, the status of the Naval Reactors Office’s reactor core
development, and any collaborative efforts with the Department of Energy to address the
identified funding shortfalls no later than 90 days after the enactment of this Act. (Page 239)
S.Rept. 113-176 also states:
Naval Reactors
The committee recommends $1.4 billion for naval reactors. The committee understands that
in fiscal year 2014, naval reactors did not receive funding for a super computer to model the
Ohio Replacement fuel core, as well as funds needed for the Modifications and Additions to
a Reactor Facility at Knolls Atomic Power Laboratories. The committee encourages the
Secretary of Energy to approve necessary reprogramming funds to meet these important
program objectives. The committee supports the replacement for the Spent Fuel Handling
Facility to be constructed at the Idaho National Laboratory. (Pages 284-285)
FY2015 DOD Appropriations Act (H.R. 4870)
House
The House Appropriations Committee, in its report (H.Rept. 113-473 of June 13, 2014) on H.R.
4870, recommends approving the Navy’s requests for FY2015 research and development funding
for the Ohio replacement program. (Page 228, lines 044 and 049.)


Congressional Research Service
41

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Appendix A. June 2013 Navy Blog Post Regarding
Ohio Replacement Options

This appendix presents the text of a June 26, 2013, blog post by Rear Admiral Richard
Breckenridge, the Navy’s Director for Undersea Warfare (N97), discussing options that were
examined for replacing the Ohio-class SSBNs. The text is as follows:
Over the last five years, the Navy – working with U.S. Strategic Command, the Joint Staff
and the Office of the Secretary of Defense – has formally examined various options to
replace the Ohio ballistic missile submarines as they retire beginning in 2027. This analysis
included a variety of replacement platform options, including designs based on the highly
successful Virginia-class attack submarine program and the current Ohio-class ballistic
missile submarine. In the end, the Navy elected to pursue a new design that leverages the
lessons from the Ohio, the Virginia advances in shipbuilding and improvements in cost-
efficiency.
Recently, a variety of writers have speculated that the required survivable deterrence could
be achieved more cost effectively with the Virginia-based option or by restarting the Ohio-
class SSBN production line. Both of these ideas make sense at face value – which is why
they were included among the alternatives assessed – but the devil is in the details. When we
examined the particulars, each of these options came up short in both military effectiveness
and cost efficiency.
Virginia-based SSBN design with a Trident II D5 missile. An SSBN design based on a
Virginia-class attack submarine with a large-diameter missile compartment was rejected due
to a wide range of shortfalls. It would:

Not meet survivability (stealth) requirements due to poor hull streamlining and lack of a
drive train able to quietly propel a much larger ship

Not meet at-sea availability requirements due to longer refit times (since equipment is
packed more tightly within the hull, it requires more time to replace, repair and retest)

Not meet availability requirements due to a longer mid-life overhaul (refueling needed)

Require a larger number of submarines to meet the same operational requirement

Reduce the deterrent value needed to protect the country (fewer missiles, warheads at-
sea)

Be more expensive than other alternatives due to extensive redesign of Virginia systems
to work with the large missile compartment (for example, a taller sail, larger control surfaces
and more robust support systems)
We would be spending more money (on more ships) to deliver less deterrence (reduced at-
sea warhead presence) with less survivability (platforms that are less stealthy).
Virginia-based SSBN design with a smaller missile. Some have encouraged the
development of a new, smaller missile to go with a Virginia-based SSBN. This would carry
forward many of the shortfalls of a Virginia-based SSBN we just discussed, and add to it a
long list of new issues. Developing a new nuclear missile from scratch with an industrial
base that last produced a new design more than 20 years ago would be challenging, costly
Congressional Research Service
42

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

and require extensive testing. We deliberately decided to extend the life of the current missile
to decouple and de-risk the complex (and costly) missile development program from the new
replacement submarine program. Additionally, a smaller missile means a shorter
employment range requiring longer SSBN patrol transits. This would compromise
survivability, require more submarines at sea and ultimately weaken our deterrence
effectiveness. With significant cost, technical and schedule risks, there is little about this
option that is attractive.
Ohio-based SSBN design. Some have argued that we should re-open the Ohio production
line and resume building the Ohio design SSBNs. This simply cannot be done because there
is no Ohio production line. It has long since been re-tooled and modernized to build state-of-
the-art Virginia-class SSNs using computerized designs and modular, automated
construction techniques. Is it desirable to redesign the Ohio so that a ship with its legacy
performance could be built using the new production facilities? No, since an Ohio-based
SSBN would:

Not provide the required quieting due to Ohio design constraints and use of a propeller
instead of a propulsor (which is the standard for virtually all new submarines)

Require 14 instead of 12 SSBNs by reverting to Ohio class operational availability
standards (incidentally creating other issues with the New START treaty limits)

Suffer from reduced reliability and costs associated with the obsolescence of legacy
Ohio system components
Once again, the end result would necessitate procuring more submarines (14) to provide the
required at-sea presence and each of them would be less stealthy and less survivable against
foreseeable 21st century threats.
The Right Answer: A new design SSBN that improves on Ohio: What has emerged from
the Navy’s exhaustive analysis is an Ohio replacement submarine that starts with the
foundation of the proven performance of the Ohio SSBN, its Trident II D5 strategic weapons
system and its operating cycle. To this it adds:

Enhanced stealth as necessary to pace emerging threats expected over its service life

Systems commonality with Virginia (pumps, valves, sonars, etc.) wherever possible,
enabling cost savings in design, procurement, maintenance and logistics

Modular construction and use of COTS equipment consistent with those used in today’s
submarines to reduce the cost of fabrication, maintenance and modernization. Total
ownership cost reduction (for example, investing in a life-of-the-ship reactor core enables
providing the same at-sea presence with fewer platforms). Although the Ohio replacement is
a “new design,” it is in effect an SSBN that takes the best lessons from 50 years of undersea
deterrence, from the Ohio, from the Virginia, from advances in shipbuilding efficiency and
maintenance, and from the stern realities of needing to provide survivable nuclear deterrence.
The result is a low-risk, cost-effective platform capable of smoothly transitioning from the
Ohio and delivering effective 21st century undersea strategic deterrence.111

111 “Facts We Can Agree Upon About Design of Ohio Replacement SSBN,” Navy Live, accessed July 3, 2013, at
http://navylive.dodlive.mil/2013/06/26/facts-we-can-agree-upon-about-design-of-ohio-replacement-ssbn/.
Congressional Research Service
43

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Appendix B. Earlier Oversight Issue:
A Design with 16 vs. 20 SLBM Tubes

Overview
An earlier oversight issue for Congress concerned the plan to design the SSBN(X) with 16 SLBM
tubes rather than 20—one of several decisions made to reduce the estimated average procurement
cost of boats 2 through 12 in the program to $5.6 billion in FY2010 dollars.112 Some observers
were concerned that designing the SSBN(X) with 16 tubes rather than 20 would create a risk that
U.S. strategic nuclear forces might not have enough capability in the 2030s and beyond to fully
perform their deterrent role. These observers noted that to comply with the New Start Treaty
limiting strategic nuclear weapons, DOD plans to operate in coming years a force of 14 Trident
SSBNs, each with 20 operable SLBM tubes (4 of the 24 tubes on each boat are to be rendered
inoperable), for a total of 240 tubes, whereas the Navy in the Ohio replacement program is
planning a force of 12 SSBNs each with 16 tubes, for a total of 192 tubes, or 20% less than 240.
These observers also cited the uncertainties associated with projecting needs for strategic
deterrent forces out to the year 2080, when the final SSBN(X) is scheduled to leave service.
These observers asked whether the plan to design the SSBN(X) with 16 tubes rather than 20 was
fully supported within all parts of DOD, including U.S. Strategic Command (STRATCOM).
In response, Navy and other DOD officials stated that the decision to design the SSBN(X) with
16 tubes rather than 20 was carefully considered within DOD, and that they believe a boat with
16 tubes will give U.S. strategic nuclear forces enough capability to fully perform their deterrent
role in the 2030s and beyond.

112 At a March 30, 2011, hearing before the Strategic Forces subcommittee of the Senate Armed Services Committee,
Admiral Kirkland Donald, Deputy Administrator for Naval Reactors and Director, Naval Nuclear Propulsion, National
Nuclear Security Administration, when asked for examples cost efficiencies that are being pursued in his programs,
stated:
The—the Ohio replacement [program] has been one that we’ve obviously been focused on here
for—for several years now. But in the name of the efficiencies, and one of the issues as we work
through the Defense Department’s acquisition process, we were the first program through that new
process that Dr. [Aston] Carter [the DOD acquisition executive] headed up.
But we were challenged to—to drive the cost of that ship down, and as far as our part was
concerned, one of the key decisions that was made that—that helped us in that regard was a
decision to go from 20 missile tubes to 16 missile tubes, because what that allowed us to do was to
down rate the—the propulsion power that was needed, so obviously, it’s a – it’s a small[er] the
reactor that you would need.
But what it also allowed us to do was to go back [to the use of existing components]. The size [of
the ship] fell into the envelope where we could go back and use components that we had already
designed for the Virginia class [attack submarines] and bring those into this design, not have to do
it over again, but several of the mechanical components, to use those over again.
And it enabled us to drive the cost of that propulsion plant down and rely on proven technology
that’s—pumps and valves and things like that don’t change like electronics do.
So we’re pretty comfortable putting that in ship that’ll be around ‘til 2080. But we were allowed to
do that.
(Source: Transcript of hearing.)
Congressional Research Service
44

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Testimony in 2011
At a March 1, 2011, hearing before the House Armed Services Committee, Admiral Gary
Roughead, then-Chief of Naval Operations, stated:
I’m very comfortable with where we're going with SSBN-X. The decision and the
recommendation that I made with regard to the number of tubes—launch tubes are consistent
with the new START treaty. They’re consistent with the missions that I see that ship having
to perform. And even though it may be characterized as a cost cutting measure, I believe it
sizes the ship for the missions it will perform.113
At a March 2, 2011, hearing before the Strategic Forces subcommittee of the House Armed
Services Committee, the following exchange occurred:
REPRESENTATIVE TURNER:
General Kehler, thank you so much for your continued thoughts and of course your
leadership. One item that we had a discussion on was the triad, of looking to—of the Navy
and the tube reductions of 20 to 16, as contained in other hearings on the Hill today. I would
like your thoughts on the reduction of the tubes and what you see driving that, how you see it
affecting our strategic posture and any other thoughts you have on that?
AIR FORCE GENERAL C. ROBERT KEHLER, COMMANDER, U.S. STRATEGIC
COMMAND
Thank you, Mr. Chairman. Well, first of all, sir, let me say that the—in my mind anyway, the
discussion of Trident and Ohio-class replacement is really a discussion in the context of the
need to modernize the entire triad. And so, first of all, I think that it’s important for us to
recognize that that is one piece, an important piece, but a piece of the decision process that
we need to go through.
Second, the issue of the number of tubes is not a simple black-and-white answer. So let me
just comment here for a minute.
First of all, the issue in my mind is the overall number of tubes we wind up with at the end,
not so much as the number of tubes per submarine.
Second, the issue is, of course, we have flexibility and options with how many warheads per
missile per tube, so that’s another consideration that enters into this mixture.
Another consideration that is important to me is the overall number of boats and the
operational flexibility that we have with the overall number of boats, given that some
number will need to be in maintenance, some number will need to be in training, et cetera.
And so those and many other factors—to include a little bit of foresight here, in looking
ahead to 20 years from now in antisubmarine warfare environment that the Navy will have to
operate in, all of those bear on the ultimate sideways shape configuration of a follow-on to
the Ohio.

113 Source: Transcript of hearing.
Congressional Research Service
45

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

At this point, Mr. Chairman, I am not overly troubled by going to 16 tubes. As I look at this,
given that we have that kind of flexibility that I just laid out; given that this is an element of
the triad and given that we have some decision space here as we go forward to decide on the
ultimate number of submarines, nothing troubles me operationally here to the extent that I
would oppose a submarine with 16 tubes.
I understand the reasons for wanting to have 20. I understand the arguments that were made
ahead of me. But as I sit here today, given the totality of the discussion, I am—as I said, I am
not overly troubled by 16. Now, I don’t know that the gavel has been pounded on the other
side of the river yet with a final decision, but at this point, I am not overly troubled by 16.114
At an April 5, 2011, hearing before the Strategic Forces subcommittee of the House Armed
Services Committee, the following exchange occurred:
REPRESENTATIVE LARSEN:
General Benedict, we have had this discussion, not you and I, I am sorry. But the
subcommittee has had a discussion in the past with regards to the Ohio-class replacement
program.
The new START, though, when it was negotiated, assumed a reduction from 24 missile
tubes per hole to, I think, a maximum a maximum of 20.
The current configuration [for the SSBN(X)], as I understand it, would move from 24 to 16.
Can you discuss, for the subcommittee here, the Navy’s rationale for that? For moving from
24 to 16 as opposed to the max of 20?
NAVY REAR ADMIRAL TERRY BENEDICT, DIRECTOR, STRATEGIC SYSTEMS
PROGRAMS (SSP):
Sir, as part—excuse me, as part of the work-up for the milestone A [review for the SSBN(X)
program] with Dr. Carter in OSD, SSP supported the extensive analysis at both the OSD
level as well as STRATCOM’s analysis.
Throughout that process, we provided, from the SWS [strategic weapon system] capability,
our perspective. Ultimately that was rolled up into both STRATCOM and OSD and senior
Navy leadership and in previous testimony, the secretary of the Navy, the CNO, and General
Chilton have all expressed their confidence that the mission of the future, given their
perspectives, is they see the environment today can be met with 16.
And so, as the acquisition and the SWS provider, we are prepared to support that decision by
leadership, sir.
REPRESENTATIVE LARSEN:
Yes.
And your analysis supports—did your analysis that fed into this, did you look at specific
numbers then?

114 Source: Transcript of hearing.
Congressional Research Service
46

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

REARD ADMIRAL BENEDICT:
Sir, we looked at the ability of the system, again, SSP does not look at specific targets with...
REPRESENTATIVE LARSEN:
Right. Yes, yes, yes.
REAR ADMIRAL BENEDICT:
Our input was the capability of the missile, the number of re-entry bodies and the throw
weight that we can provide against those targets and based on that analysis, the leadership
decision was 16, sir.115
At an April 6, 2011, hearing before the Strategic Forces subcommittee of the Senate Armed
Services Committee, the following exchange occurred:
SENATOR SESSIONS:
Admiral Benedict, according to recent press reports, the Navy rejected the recommendations
of Strategic Command to design the next generation of ballistic missile submarines with 20
missile tubes instead of opting for only 16 per boat.
What is the basis for the Navy’s decision of 16? And I'm sure cost is a factor. In what ways
will that decision impact the overall nuclear force structure associated with the command?
NAVY REAR ADMIRAL TERRY BENEDICT, DIRECTOR, STRATEGIC SYSTEMS
PROGRAMS (SSP):
Yes, sir. SSP supported the Navy analysis, STRATCOM’s analysis, as well as the OSD
analysis, as we proceeded forward and towards the Milestone A decision [on the SSBN(X)
program] that Dr. Carter conducted.
Based on our input, which was the technical input as the—as the director of SSP, other
factors were considered, as you stated. Cost was one of them. But as the secretary, as the
CNO, and I think as General Kehler submitted in their testimony, that given the threats that
we see today, given the mission that we see today, given the upload capability of the D-5,
and given the environment as they saw today, all three of those leaders were comfortable
with the decision to proceed forward with 16 tubes, sir.
SENATOR SESSIONS:
And is that represent your judgment? To what extent were you involved—were you involved
in that?
REAR ADMIRAL BENEDICT:
Sir, we were involved from technical aspects in terms of the capability of the missile itself,
what we can throw, our range, our capability. And based on what we understand the

115 Source: Transcript of hearing.
Congressional Research Service
47

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

capability of the D-5 today, which will be the baseline missile for the Ohio Replacement
Program, as the director of SSP I’m comfortable with that decision.116
Section 242 Report
Section 242 of the FY2012 National Defense Authorization Act (H.R. 1540/P.L. 112-81 of
December 31, 2011) required DOD to submit a report on the Ohio replacement program that
includes, among other things, an assessment of various combinations of boat quantities and
numbers of SLBM launch tubes per boat. The text of the section is as follows:
SEC. 242. REPORT AND COST ASSESSMENT OF OPTIONS FOR OHIO-CLASS
REPLACEMENT BALLISTIC MISSILE SUBMARINE.
(a) Report Required- Not later than 180 days after the date of the enactment of this Act, the
Secretary of the Navy and the Commander of the United States Strategic Command shall
jointly submit to the congressional defense committees a report on each of the options
described in subsection (b) to replace the Ohio-class ballistic submarine program. The report
shall include the following:
(1) An assessment of the procurement cost and total life-cycle costs associated with each
option.
(2) An assessment of the ability for each option to meet—
(A) the at-sea requirements of the Commander that are in place as of the date of the
enactment of this Act; and
(B) any expected changes in such requirements.
(3) An assessment of the ability for each option to meet—
(A) the nuclear employment and planning guidance in place as of the date of the enactment
of this Act; and
(B) any expected changes in such guidance.
(4) A description of the postulated threat and strategic environment used to inform the
selection of a final option and how each option provides flexibility for responding to changes
in the threat and strategic environment.
(b) Options Considered- The options described in this subsection to replace the Ohio-class
ballistic submarine program are as follows:
(1) A fleet of 12 submarines with 16 missile tubes each.
(2) A fleet of 10 submarines with 20 missile tubes each.
(3) A fleet of 10 submarines with 16 missile tubes each.
(4) A fleet of eight submarines with 20 missile tubes each.

116 Source: Transcript of hearing.
Congressional Research Service
48

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

(5) Any other options the Secretary and the Commander consider appropriate.
(c) Form- The report required under subsection (a) shall be submitted in unclassified form,
but may include a classified annex.
Subsection (c) above states the report “shall be submitted in unclassified form, but may include a
classified annex.”
The report as submitted was primarily the classified annex, with a one-page unclassified
summary, the text of which is as follows (underlining as in the original):
The National Defense Authorization Act (NDAA) for Fiscal Year 2012 (FY12) directed the
Secretary of the Navy and the Commander of U.S. Strategic Command (USSTRATCOM) to
jointly submit a report to the congressional defense committees comparing four different
options for the OHIO Replacement (OR) fleet ballistic missile submarine (SSBN) program.
Our assessment considered the current operational requirements and guidance. The four
SSBN options analyzed were:
1. 12 SSBNs with 16 missile tubes each
2. 10 SSBNs with 20 missile tubes each
3. 10 SSBNs with 16 missile tubes each
4. 8 SSBNs with 20 missile tubes each
The SSBN force continues to be an integral part of our nuclear Triad and contributes to
deterrence through an assured second strike capability that is survivable, reliable, and
credible. The number of SSBNs and their combined missile tube capacity are important
factors in our flexibility to respond to changes in the threat and uncertainty in the strategic
environment.
We assessed each option against the ability to meet nuclear employment and planning
guidance, ability to satisfy at-sea requirements, flexibility to respond to future changes in the
postulated threat and strategic environment, and cost. In general, options with more SSBNs
can be adjusted downward in response to a diminished threat; however, options with less
SSBNs are more difficult to adjust upward in response to a growing threat.
Clearly, a smaller SSBN force would be less expensive than a larger force, but for the
reduced force options we assessed, they fail to meet current at-sea and nuclear employment
requirements, increase risk in force survivability, and limit flexibility in response to an
uncertain strategic future. Our assessment is the program of record, 12 SSBNs with 16
missile tubes each, provides the best balance of performance, flexibility, and cost meeting
commander’s requirements while supporting the Nation’s strategic deterrence mission goals
and objectives.
The classified annex contains detailed analysis that is not releasable to the public.117


117 Report and Cost Assessment of Options for OHIO-Class Replacement Ballistic Missile Submarine, Unclassified
Summary, received from Navy Legislative Affairs Office, August 24, 2012. See also Christopher J. Castelli,
“Classified Navy Assessment On SSBN(X) Endorses Program Of Record,” Inside the Navy, September 10, 2012.
Congressional Research Service
49

Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program

Author Contact Information

Ronald O'Rourke

Specialist in Naval Affairs
rorourke@crs.loc.gov, 7-7610


Congressional Research Service
50