EPA and the Army Corps’ “Waters of the
United States” Rule: Congressional Response
and Options

Claudia Copeland
Specialist in Resources and Environmental Policy
June 3, 2015
Congressional Research Service
7-5700
www.crs.gov
R43943


The “Waters of the United States” Rule: Congressional Response and Options

Summary
In May 27, the Army Corps of Engineers (the Corps) and the Environmental Protection Agency
(EPA) finalized a rule revising regulations that define the scope of waters protected under the
Clean Water Act (CWA). Discharges to waters under CWA jurisdiction, such as the addition of
pollutants from factories or sewage treatment plants and the dredging and filling of spoil material
through mining or excavation, require a CWA permit. The rule was proposed in 2014 in light of
Supreme Court rulings in 2001 and 2006 that created uncertainty about the geographic limits of
waters that are and are not protected by the CWA. The rule would replace EPA-Corps guidance
that has governed permitting decisions since the Court’s rulings.
According to EPA and the Corps, their intent in proposing the rule was to clarify CWA
jurisdiction, not expand it. Nevertheless, the rule has been extremely controversial, especially
with groups representing property owners, land developers, and agriculture, who contend that it
represents a massive federal overreach beyond the agencies’ statutory authority. Most state and
local officials are supportive of clarifying the extent of CWA-regulated waters, but some are
concerned that the rule could impose costs on states and localities as their own actions become
subject to new requirements. Most environmental advocacy groups welcomed the proposal,
which would more clearly define U.S. waters that are subject to CWA protections, but beyond that
general support, some in these groups favor an even stronger rule. The final rule contains a
number of changes to respond to criticisms of the proposal, but the revisions may not satisfy all
critics of the rule.
Because of controversies over the rule, some in Congress favor halting EPA and the Corps’
current approach to defining “waters of the United States.” To do so legislatively, there are at least
four options available to change the agencies’ course. Several are reflected in bills in the 114th
Congress.
The Congressional Review Act. If Congress passes a joint resolution
disapproving a covered rule under procedures provided by the act, and the
resolution becomes law, the rule cannot take effect or continue in effect. The
agency may not reissue either that rule or any substantially similar one, except
under authority of a subsequently enacted law.
Appropriations bill limitations. A provision in an appropriations bill can be a
mechanism to block or redirect an agency’s course of action by limiting or
preventing agency funds from being used for the rule.
Targeted legislation. Other legislation can take several forms, such as a bill
similar to limits in an appropriations bill to prohibit EPA and the Corps from
finalizing, implementing, or enforcing the proposed rule. Another approach could
be legislation to address substantive aspects of the rule that have been criticized.
Broad amendments to the Clean Water Act. Legislation to affirm or clarify
Congress’s intention regarding CWA jurisdiction would have broad implications
for the CWA, since questions of jurisdiction are fundamental to all of the act’s
regulatory requirements.
These options and related legislative activity are discussed in this report. Each option faces a
steep path to enactment, because President Obama likely would oppose legislation to halt or
weaken a major regulatory initiative of the Administration such as the “waters of the United
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The “Waters of the United States” Rule: Congressional Response and Options

States” rule. To become law, the President must sign a bill or allow it to become law without his
signature, or two-thirds of the House and Senate must vote to override his veto.
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The “Waters of the United States” Rule: Congressional Response and Options

Contents
Introduction ...................................................................................................................................... 1
Background ...................................................................................................................................... 1
Congressional Options ..................................................................................................................... 4
Congressional Review Act ........................................................................................................ 4
Appropriations Bills .................................................................................................................. 6
Targeted Legislation .................................................................................................................. 7
Other Clean Water Act Amendments ......................................................................................... 9
Conclusion ..................................................................................................................................... 10

Contacts
Author Contact Information........................................................................................................... 11

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The “Waters of the United States” Rule: Congressional Response and Options

Introduction
On May 27, the Army Corps of Engineers (the Corps) and the Environmental Protection Agency
(EPA) finalized a rule revising regulations that define the scope of waters protected under the
Clean Water Act (CWA). Discharges to waters under CWA jurisdiction, such as the addition of
pollutants from factories or sewage treatment plants and the dredging and filling of spoil material
through mining or excavation, require a CWA permit. The rule was proposed in 2014 in light of
Supreme Court rulings that created uncertainty about the geographic limits of waters that are and
are not protected by the CWA.
The revised rule will become effective 60 days after publication in the Federal Register, to allow
time for review under the Congressional Review Act.1 Legal challenges to the rule can be filed on
the date two weeks after the effective date.
According to EPA and the Corps, the agencies’ intent was to clarify CWA jurisdiction, not expand
it. Nevertheless, the rule has been extremely controversial, especially with groups representing
property owners, land developers, and the agriculture sector, who contend that it represents a
massive federal overreach beyond the agencies’ statutory authority. Most state and local officials
are supportive of clarifying the extent of CWA-regulated waters, but some are concerned that the
rule could impose costs on states and localities as their own actions (e.g., transportation or public
infrastructure projects) become subject to new requirements. Most environmental advocacy
groups welcomed the intent of the proposal to more clearly define U.S. waters that are subject to
CWA protections, but beyond that general support, some favored even a stronger rule.
Many critics in Congress and elsewhere urged that the proposed rule be withdrawn, but EPA and
the Corps pointed out that doing so would leave in place the status quo—with determinations of
CWA jurisdiction being made pursuant to existing regulations, coupled with non-binding agency
guidance, and many of these determinations involving time-consuming case-specific evaluation.
Still, some in Congress favor halting the agencies’ current approach to defining “waters of the
United States.” This report discusses several options that Congress could consider and that are
reflected in bills in the 114th Congress.
Background2
The CWA protects “navigable waters,” a term defined in the act to mean “the waters of the United
States, including the territorial seas.”3 Waters need not be truly navigable to be subject to CWA
jurisdiction. The act’s single definition of “navigable waters” applies to the entire law, including
the federal prohibition on pollutant discharges except in compliance with the act (§301), permit
requirements (§§402 and 404), water quality standards and measures to attain them (§303), oil
spill liability and oil spill prevention and control measures (§311), and enforcement (§309). The

1 Until the final rule is published in the Federal Register, a prepublication version of it is available on EPA’s website,
at http://www2.epa.gov/cleanwaterrule/prepublication-version-final-rule.
2 The CWA and the proposed and final rules are more fully discussed in CRS Report R43455, EPA and the Army
Corps’ Rule to Define “Waters of the United States”
, by Claudia Copeland. It includes a table that compares the
current regulatory language that defines “waters of the United States” with language in the proposed and final rules.
3 CWA §502(7); 33 U.S.C. §1362(7).
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The “Waters of the United States” Rule: Congressional Response and Options

CWA gave the agencies the authority to define the term “waters of the United States” more fully
in regulations, which EPA and the Corps have done several times, most recently in 1986. While
EPA is primarily responsible for implementing the CWA, EPA and the Corps share
implementation of the dredge and fill permitting program in Section 404.
The courts, including the Supreme Court, generally upheld the agencies’ implementation until
Supreme Court rulings in 2001 and 2006 (Solid Waste Agency of Northern Cook County v. U.S.
Army Corps of Engineers
, (SWANCC) 531 U.S. 159 (2001); and Rapanos v. United States, 547
U.S. 716 (2006), respectively). Those rulings interpreted the regulatory scope of the CWA more
narrowly than the agencies and lower courts were then doing, and created uncertainty about the
appropriate scope of waters protected under the CWA.4
In 2003 and 2008, the agencies issued guidance intended to lessen confusion over the Court’s
rulings. The non-binding guidance sought to identify, in light of those rulings, categories of
waters that remain jurisdictional, categories not jurisdictional, and categories that require a case-
specific analysis to determine if CWA jurisdiction applies. The Obama Administration proposed
revised guidance in 2011; it was not finalized, but it was the substantive basis for the 2014
proposed rule. In proposing to amend the regulatory definition of “waters of the United States”
rather than issue another guidance document, EPA and the Corps were not only acting to reduce
the confusion created by SWANCC and Rapanos. They also appeared to be picking up on the
suggestion of several of the justices in Rapanos that an amended rule would be helpful.
The final rule announced on May 27 retains much of the structure of the agencies’ existing
definition of “waters of the United States.”5 It focuses particularly on clarifying the regulatory
status of surface waters located in isolated places in a landscape and streams that flow only part
of the year, along with nearby wetlands—the types of waters with ambiguous jurisdictional status
following the Supreme Court’s rulings. Like the 2003 and 2008 guidance documents and the 2014
proposal, it identifies categories of waters that are and are not jurisdictional, as well as categories
of waters and wetlands that require a case-specific evaluation.
• Under the final rule, all tributaries to the nation’s traditional navigable waters,
interstate waters, the territorial seas, or impoundments of these waters would be
jurisdictional per se. All of these waters are jurisdictional under existing rules,
but the term “tributary” is newly defined in the rule.
• Waters—including wetlands, ponds, lakes, oxbows, and similar waters—that are
adjacent to traditional navigable waters, interstate waters, the territorial seas,
jurisdictional tributaries, or impoundments of these waters would be
jurisdictional by rule. The final rule for the first time puts some boundaries on
what is considered “adjacent.”
• Some waters—but fewer than under current practice—would remain subject to a
case-specific evaluation of whether or not they meet the legal standards for
federal jurisdiction established by the Supreme Court. The final rule establishes

4 For discussion of the legal background, see CRS Report RL33263, The Wetlands Coverage of the Clean Water Act
(CWA): Rapanos and Beyond
, by Robert Meltz and Claudia Copeland.
5 The definition of “waters of the United States” is found at 33 C.F.R. §328.3 (Corps) and 40 C.F.R. §122.2 (EPA). The
term is similarly defined in other EPA regulations, as is the term “navigable waters.”
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two defined sets of additional waters that will be a “water of the United States” if
they are determined to have a significant nexus to a jurisdictional waters.
• The final rule identifies a number of types of waters to be excluded from CWA
jurisdiction. Some are restatements of exclusions under current rules (e.g., prior
converted cropland); some have been excluded by practice and would be
expressly excluded by rule for the first time (e.g., groundwater, some ditches).
Some exclusions were added to the final rule based on public comments (e.g.,
stormwater management systems and groundwater recharge basins). The rule
makes no change and does not affect existing statutory exclusions: permit
exemptions for normal farming, ranching, and silviculture practice and for
maintenance of drainage ditches (CWA §404(f)(1)), as well as for agricultural
stormwater discharges and irrigation return flows (CWA §402(l)).
The agencies’ intention was to clarify questions of CWA jurisdiction, in view of the Supreme
Court’s rulings and consistent with the agencies’ scientific and technical expertise. Much of the
controversy since the Court’s rulings has centered on the many instances that have required
applicants for CWA permits to seek a time-consuming case-specific evaluation to determine if
CWA jurisdiction applies to their activity, due to uncertainty over the geographic scope of the act.
In the rule, the Corps and EPA intended to clarify jurisdictional questions by clearly articulating
categories of waters that are and are not protected by the CWA and thus limiting the types of
waters that still require case-specific analysis. However, critical response to the proposal from
industry, agriculture, many states, and some local governments was that the rule was vague and
ambiguous and could be interpreted to enlarge the regulatory jurisdiction of the CWA beyond
what the statute and the courts allow.
Officials of the Corps and EPA vigorously defended the proposed rule. But they acknowledged
that it raised questions that required clarification in the final rule. In an April 2015 blog post, the
EPA Administrator and the Assistant Secretary for the Army said that the agencies responded to
criticisms of the proposal with changes in the final rule, which was then undergoing interagency
review. The blog post said that the final rule would make changes such as: defining tributaries
more clearly; better defining how protected waters are significant; limiting protection of ditches
to those that function like tributaries and can carry pollution downstream; and preserving CWA
exclusions and exemptions for agriculture.6 The final rule announced on May 27 does reflect a
number of changes from the proposal, especially to provide more bright line boundaries and
simplify definitions that identify waters that are protected under the CWA.7 The agencies’
intention has been to clarify the rules and make jurisdictional determinations more predictable,
less ambiguous, and more timely. Based on press reports of stakeholders’ early reactions to the
final rule, it appears that some believe that the agencies largely succeeded in that objective, while
others believe that they did not.8
Congressional interest in the rule has been strong since the proposal was announced in 2014. On
February 4, 2015, the Senate Environment and Public Works Committee and the House

6 Gina McCarthy and Jo-Ellen Darcy, “Your Input Is Shaping the Clean Water Rule,” EPA Connect, The Official Blog
of EPA’s Leadership
, April 6, 2015, http://blog.epa.gov/epaconnect/2015/04/your-input-is-shaping-the-clean-water-
rule/#more-3470.
7 See CRS Report R43455, EPA and the Army Corps’ Rule to Define “Waters of the United States,” for discussion.
8 See, for example, Amena H. Saiyid, “Obama Says Water Jurisdiction Rule Provides Clarity, Certainty; Critics Claim
Overreach,” Daily Environment Report, May 28, 2015, pp. A-1.
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Transportation and Infrastructure Committee held a joint hearing on impacts of the proposed rule
on state and local governments, hearing from public and EPA and Corps witnesses. Other
hearings have been held by Senate and House committees in the 114th Congress. The proposal
also was discussed at House committee hearings during the 113th Congress. As described below, a
number of bills have been introduced, most of them intended either to prohibit the agencies from
finalizing the 2014 proposed rule or to detail procedures for a new rulemaking.
Congressional Options
As noted earlier, some in Congress favor halting EPA and the Corps’ current approach to defining
“waters of the United States.” To do so legislatively, there are at least four options available to
change the agencies’ course: a resolution of disapproval under the Congressional Review Act,
appropriations bill provisions, targeted legislation, and broad amendments to the Clean Water Act.
Congressional Review Act9
The Congressional Review Act (CRA), enacted in 1996, establishes special congressional
procedures for disapproving a broad range of regulatory rules issued by federal agencies.10 Before
any rule covered by the act can take effect, the federal agency that promulgates it must submit it
to both houses of Congress and the Government Accountability Office (GAO). If Congress passes
a joint resolution disapproving the rule under procedures provided by the act, and the resolution
becomes law,11 the rule cannot take effect or continue in effect. Also, the agency may not reissue
either that rule or any substantially similar one, except under authority of a subsequently enacted
law.12
The CRA applies to major rules, non-major rules, final rules, and interim final rules. The
definition of “rule” is sufficiently broad that it may define as “rules” agency actions that are not
subject to traditional notice and comment rulemaking under the Administrative Procedure Act,
such as guidance documents and policy memoranda. A joint resolution of disapproval must be
introduced within a specific time frame: during a 60-days-of-continuous-session period beginning
on the day the rule is received by Congress.13

9 This section, discussing the effect of the Congressional Review Act, the procedures under which a disapproval
resolution can be taken up in the Senate, floor consideration in the Senate, and final congressional action, is adapted
from CRS Report RL31160, Disapproval of Regulations by Congress: Procedure Under the Congressional Review Act,
by Richard S. Beth; and CRS Report IF10023, The Congressional Review Act (CRA), by Alissa M. Dolan, Maeve P.
Carey, and Christopher M. Davis.
10 5 U.S.C. §§801-808. The CRA applies to a “rule,” as defined in 5 U.S.C. §804(3).
11 For the resolution to become law, the President must sign it or allow it to become law without his signature, or
Congress must override a presidential veto.
12 The CRA has been much discussed as a tool for overturning EPA’s regulatory actions on greenhouse gas emissions.
See CRS Report R41212, EPA Regulation of Greenhouse Gases: Congressional Responses and Options, by James E.
McCarthy.
13 Days-of-continuous-session periods count every calendar day, including weekends and holidays, and only exclude
days that either chamber (or both) is gone for more than three days, that is, pursuant to an adjournment resolution.
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The path to enactment of a CRA joint resolution is a steep one. In the nearly two decades since
the CRA was enacted, only one resolution has ever been enacted.14 The path is particularly steep
if the President opposes the resolution’s enactment, which would almost certainly be the case
with a resolution disapproving an EPA-Corps rule to define “waters of the United States.” The
Obama Administration has fully supported the rule. Thus, many have concluded that legislation
restricting their authority to act, if passed by Congress, would encounter a presidential veto.
Overriding a veto requires a two-thirds majority in both the House and Senate.15
The potential advantage of the CRA lies primarily in the procedures under which a resolution of
disapproval can be considered in the Senate. Pursuant to the act, an expedited procedure for
Senate consideration of a joint resolution of disapproval may be used at any time within 60 days
of Senate session after the rule in question has been submitted to Congress and published in the
Federal Register. The expedited procedure provides that, if the committee to which a disapproval
resolution has been referred has not reported it by 20 calendar days after the rule has been
received by Congress and published in the Federal Register, the committee may be discharged if
30 Senators submit a petition for that purpose. The resolution is then placed on the Senate
Calendar.
Under the expedited procedure, once a disapproval resolution is on the Senate Calendar, a motion
to proceed to consider it is in order. Several provisions of the expedited procedure protect against
various potential obstacles to the Senate’s ability to take up a disapproval resolution. The Senate
has treated a motion to consider a disapproval resolution under the CRA as not debatable, so that
this motion cannot be filibustered through extended debate. After the Senate takes up the
disapproval resolution itself, the expedited procedure of the CRA limits debate to 10 hours and
prohibits amendments.16
The act sets no deadline for final congressional action on a disapproval resolution, so a resolution
could theoretically be brought to the Senate floor even after the expiration of the deadline for the
use of the CRA’s expedited procedures. To obtain floor consideration, the bill’s supporters would
then have to follow the Senate’s normal procedures, however.
There are no expedited procedures for initial House consideration of a joint resolution of
disapproval. A resolution could reach the House floor through its ordinary procedures, that is,
generally by being reported by the committee of jurisdiction (in the case of CWA rules, the
Transportation and Infrastructure Committee). If the committee of jurisdiction does not report a
disapproval resolution submitted in the House, a resolution could still reach the floor pursuant to
a special rule reported by the Committee on Rules (and adopted by the House), by a motion to
suspend the rules and pass it (requiring a two-thirds vote), or by discharge of the committee
(requiring a majority of the House [218 Members] to sign a petition).

14 See P.L. 107-5 (2001) (disapproving an Occupational Safety and Health Administration rule regarding ergonomics
published at 65 Federal Register 68261).
15 In addition to the one disapproval resolution that has been enacted since 1996, the Senate has considered such a
resolution fewer than 15 times. A few of these passed the Senate, but none was enacted. In the other instances, the
Senate debated the question of calling up the resolution or the resolution itself, and rejected the question.
16 These provisions help to ensure that the Senate disapproval resolution will remain identical, at least in substantive
effect, to a House joint resolution disapproving the same rule, and that no filibuster is possible on the resolution itself.
In addition, once the motion to proceed is adopted, the resolution becomes “the unfinished business of the Senate until
disposed of,” and a non-debatable motion may be offered to limit the time for debate further. Finally, the act provides
that at the conclusion of debate, the Senate automatically proceeds to vote on the resolution.
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The CRA establishes no expedited procedure for further congressional action if the President
vetoes a disapproval resolution. In such a case, Congress would need to attempt an override of a
veto using its normal procedures for doing so.
As noted above, if a joint resolution of disapproval becomes law, the rule at issue cannot take
effect or continue in effect, and neither that rule nor a substantially similar one may be
promulgated, except under authority of a subsequently enacted law. While that outcome would
please most critics of the proposed “waters of the United States” rule, it also would leave the
regulated community in the situation that many of them have faulted—subject to 1986 rules that
are being interpreted pursuant to non-binding agency guidance that frequently requires case-
specific evaluation to determine if CWA jurisdiction applies.
Appropriations Bills
Including a provision in an appropriations bill is a second option for halting or re-directing the
proposed “waters of the United States” rule by limiting or preventing agency funds from being
used for the rule. Congress has considered legislation to do so in the recent past, but no such
restrictions have been enacted.
In the 114th Congress, on May 1 the House approved the FY2016 Energy and Water
Appropriations bill (H.R. 2028) with a provision that would bar the Corps from developing,
adopting, implementing, or enforcing any change to rules or guidance pertaining to the CWA
definition of “waters of the United States.” The Administration has indicated that the President
would veto the bill in its current form, based on part on objections to this provision.17
Similar legislation was considered in the 113th Congress. H.R. 4923, the FY2015 Energy and
Water Appropriations Act, passed the House on July 10, 2014. Like the language approved by a
House Appropriations subcommittee on April 15, 2015, H.R. 4923 included a provision to restrict
new rules to redefine “waters of the United States.” Also, the FY2015 Interior and Environment
Appropriations Act, providing funds for EPA and other agencies (H.R. 5171), contained a
provision to similarly block EPA action on the “waters” rule. The House Appropriations
Committee approved H.R. 5171 in July 2014. However, neither of these provisions was included
in legislation that provided full-year funding for EPA and the Corps, the Consolidated and
Omnibus Appropriations Act, 2015, enacted in December 2014 (P.L. 113-235).
In 2012 and 2013 the House passed appropriations bills with restrictions to prohibit the Corps
from finalizing revised “waters of the United States” guidance that the Corps and EPA had
proposed in 2011, which also was controversial with many stakeholder groups (H.R. 5325,
providing FY2013 appropriations; and H.R. 2609, for FY2014 funds). In 2012, the House
Appropriations Committee reported H.R. 6091, FY2013 Interior and Environment
Appropriations, which included a provision to bar EPA from finalizing the same revised guidance.
None of these limitations was enacted.
In comparison to a CRA resolution of disapproval, addressing an issue through an amendment to
an appropriations bill may be considered easier, since the overall appropriations bill to which it
would be included would presumably contain other elements making it “must pass” legislation, or

17 Executive Office of the President, Office of Management and Budget, Statement of Administration Policy on H.R.
2028, Energy and Water Development Appropriations Act, 2016
, April 28, 2015.
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more difficult for the President to veto. EPA and the Corps issued the final rule on May 27, before
enactment of any FY2016 appropriations bills. A funding prohibition included in an FY2016
appropriations bill would not halt finalizing the rule, but it still could attempt to block funds for
implementation. Depending on how such a restriction might be worded, questions could still
arise. For example, if an appropriations bill were to prohibit the Corps from making jurisdictional
determinations pursuant to the final rule, how would the Corps be able to process and issue
permit requests from applicants?
In recent years, controversies over a variety of environmental issues have led to inclusion of
provisions in bills reported by the House Appropriations Committee or passed by the House to
restrict funds for particular EPA programs, among other agencies. Few of these environmental
provisions have been enacted, however, in part due to opposition in the Senate.18 Some observers
foresee a somewhat easier path for congressional consideration of such restrictions in the 114th
Congress, with Republican majorities in both the House and Senate. However, a bill would still
need the President’s signature, or the votes of two-thirds majorities in both chambers to override
his veto.
Targeted Legislation
A third option is targeted legislation to re-direct development of a “waters of the United States”
rule, either by amending the CWA or in a free-standing bill. Such a bill could be similar to a
limitation in an appropriations bill with provisions to bar or prohibit EPA and/or the Corps from
finalizing, adopting, implementing, or enforcing the “waters of the United States” rule, the 2011
proposed revised guidance, or any similar rule. One such bill in the 114th Congress is H.R. 594.19
It also would direct the Corps and EPA to consult with state and local officials on CWA
jurisdiction issues and develop a report on results of such consultation. In the 113th Congress,
similar legislation was introduced in the Senate (S. 2496).20 Another bill in the 114th Congress is
H.R. 2599. It would prohibit the obligation of unobligated funds from the office of the EPA
Administrator until she withdraws the “waters of the United States” rule.
In the 114th Congress, H.R. 1732, the Regulatory Integrity Protection Act, was approved by the
House on May 12, 261-155.21 It would require EPA and the Corps to develop a new rule, taking
into consideration public comments on the 2014 proposal and supporting documents, and, in
doing so, to provide for consultation with state and local officials and other stakeholders. Under
the bill, when proposing a new rule, the agencies would have to describe the consultations in
detail and explain how the new proposal responds to public comments and consultations. During
markup of the bill, supporters said that they believe wide criticism of the current proposed rule
means it is essential for the agencies to restart the rulemaking process. Opponents of the bill said
that doing so now would foreclose the opportunity for Congress and the public to see how the
final rule responds to those criticisms. Opponents also pointed out that Congress will have the
opportunity to nullify the final rule through procedures under the CRA (see “Congressional

18 See CRS Report R43709, Environmental Protection Agency (EPA): FY2015 Appropriations, by Robert Esworthy.
19 Another 114th Congress proposal that includes a provision similar to H.R. 594 as part of a larger measure is S.
791/H.R. 1487.
20 Also in the 113th Congress, several non-appropriation bills would have restricted EPA and the Corps from finalizing
the guidance document that was proposed in 2011 but not issued (it was, however, the substantive basis for the 2014
proposed rule). Bills included H.R. 1829, H.R. 5077, S. 861, S. 1006, and S. 1514. There was no action on any of them.
21 The House passed a similar bill in the 113th Congress, H.R. 5078.
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Review Act”). During debate on the measure, the House adopted an amendment that would give
states two years to come into compliance with a new rule without losing authority over their state
permitting programs. The Obama Administration opposes H.R. 1732 and has said that the
President would veto the bill.
In the Senate, the Federal Water Quality Protection Act (S. 1140) was introduced on April 30.
Like H.R. 1732, this bill would require the agencies to develop a new rule. EPA and the Corps
would be required to take into consideration public comments on the 2014 proposal and to ensure
that procedures established under executive orders and laws such as the Regulatory Flexibility
Act, Unfunded Mandates Reform Act, and others are followed during the rulemaking. Unlike the
House bill, S. 1140 identifies certain principles that must be adhered to in developing a new rule,
especially identifying waters that should be included in defining “waters of the United States”
(e.g., reaches of streams with surface hydrological connection to traditional navigable waters with
flow in a normal year of sufficient volume, duration, and frequency that pollutants in the stream
would degrade water quality of the traditional navigable water) and waters that should not be so
included (e.g., groundwater, isolated ponds, and prior converted cropland). The principles in the
bill reflect an overall narrow interpretation of the extent of CWA jurisdiction—for example,
setting the jurisdictional limits of a stream’s reach to waters that have a continuous surface
hydrologic connection sufficient to deliver pollutants that would degrade the water quality of a
traditional navigable water, as proposed in S. 1140, generally follows the test of jurisdiction
stated by Justice Scalia in the Rapanos case.22 Under the legislation, the agencies must make best
efforts to publish a final rule by December 31, 2016. A rule not adhering to principles in the bill
would have no force or effect. A Senate Environment and Public Works subcommittee held a
hearing on this bill on May 19.
Another approach is reflected in S. 1178. It would require EPA and the Army Corps to establish a
commission, with membership appointed by the agencies and the Senate and House, to develop
criteria for defining whether a waterbody or wetland has a significant nexus to a traditional
navigable water. It would bar the agencies from developing, finalizing, implementing, or
enforcing the 2014 proposed rule or a substantially similar rule prior to receiving a report from
the commission. This bill responds in part to criticism that the science underlying the rule was not
thoroughly peer-reviewed and subject to public comment before the rule was proposed in 2014.
(For discussion, see CRS Report R43455, EPA and the Army Corps’ Rule to Define “Waters of the
United States”
)
The obstacles for targeted bills are similar to those for an appropriations bill, but with the
additional complication of needing to be included in non-appropriations legislation that is “must
pass” or difficult for the President to veto, or that can receive two-thirds votes in both chambers
to override a veto.
Targeted legislation might seek to address substantive aspects of the proposed rule that were
widely criticized. For example, many stakeholder groups contended that key definitions in the
2014 proposed rule—such as “tributary,” “floodplain,” and “significant nexus”23—were

22 See CRS Report RL33263, The Wetlands Coverage of the Clean Water Act (CWA): Rapanos and Beyond, by Robert
Meltz and Claudia Copeland.
23 The concept of significant nexus is critical because courts have ruled that, to establish CWA jurisdiction of waters,
there needs to be “some measure of the significance of the connection for downstream water quality,” as Justice
Kennedy stated in the 2006 Rapanos case.
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The “Waters of the United States” Rule: Congressional Response and Options

ambiguous, and other terms—such as “upland,” “gullies,” and “rills”—were entirely undefined.
Ambiguities could lead to agency interpretations that greatly expand the regulatory scope of CWA
jurisdiction, critics say. However, such criticisms of the proposed rule for the most part were
general in nature, rather than specific as to precise language that would clarify terms and
definitions. For Congress to legislate solutions and codify remedies in the CWA is a challenge
requiring technical expertise that legislators generally delegate to agencies and departments,
which implement laws.24
Other Clean Water Act Amendments
A fourth option could be legislation to amend the Clean Water Act more broadly. The statute has
not been comprehensively amended since 1987 (the Water Quality Act of 1987, P.L. 100-4). Since
the 2001 SWANCC and 2006 Rapanos rulings of the Supreme Court, many stakeholders have
argued that what is needed is legislative action to affirm Congress’s intention regarding CWA
jurisdiction, not guidance or new rules. This type of legislation would have broad implications for
the CWA, since questions of CWA jurisdiction are fundamental to all of the act’s regulatory
requirements.
Bills to address CWA jurisdictional issues, but taking different approaches, have been introduced
in several Congresses since 2001. Versions of one proposal (the Clean Water Authority
Restoration Act) were introduced in the 107th, 108th, 109th, 110th, and 111th Congresses. It would
have provided a broad statutory definition of “waters of the United States”; would have clarified
that the CWA is intended to protect U.S. waters from pollution, not just maintain their
navigability; and would have included a set of findings to assert constitutional authority over
waters and wetlands. In the 111th Congress, one of these bills was reported in the Senate (S. 787),
but no further action occurred.
Other legislation intended to restrict regulatory jurisdiction was introduced in the 108th and 109th
Congresses (the Federal Wetlands Jurisdiction Act, which was H.R. 2658 in the 109th Congress).
Rather than broadening the statutory definition of “navigable waters,” which is the key statutory
term for determining jurisdiction, it would have narrowed the definition. It would have defined
certain isolated wetlands that are not adjacent to navigable waters, or non-navigable tributaries
and other areas (such as waters connected to jurisdictional waters by ephemeral waters, ditches or
pipelines), as not being subject to federal regulatory jurisdiction. There was no legislative action
on these bills.

24 Another legislative option that is sometimes raised in consideration of changing major policy is budget
reconciliation, which is a budget enforcement tool under the Congressional Budget Act of 1974. Its chief purpose is “to
enhance Congress’s ability to change current law in order to bring revenue and spending levels in conformity with the
policies of the budget resolution.” (See CRS Report RL30458, The Budget Reconciliation Process: Timing of
Legislative Action
, by Megan S. Lynch.) Generally reconciliation has been used to enact spending reductions in order
to reduce the deficit, but occasionally for revenue increases and to increase spending in particular areas. The
reconciliation process for the most part has applied to mandatory spending programs, not discretionary programs.
Reconciliation legislation has been used in the past as a vehicle for enacting significant policy legislation that has
budgetary implications. (See CRS Report R40480, Budget Reconciliation Measures Enacted Into Law: 1980-2010, by
Megan S. Lynch.) The challenge for using budget reconciliation in the context of the “waters of the United States”
issue is that the rule has limited budgetary implication, beyond agency resources to develop, implement, and enforce
regulations (e.g., the Corps’ regulatory budget in FY2015 is $200 million), making it difficult to identify the rule as a
source for large budgetary savings. Moreover, spending for these activities is discretionary, not mandatory. For more
information on the content constraints of reconciliation legislation, see CRS Report R43885, Points of Order Limiting
the Contents of Reconciliation Legislation: In Brief
, by James V. Saturno.
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The “Waters of the United States” Rule: Congressional Response and Options

In the 114th Congress, legislation titled the Defense of Environment and Property Act has been
introduced (S. 980). This bill would clarify the term “navigable waters” in the CWA by defining
the term so as to be consistent with Justice Scalia’s plurality opinion in the 2006 Rapanos
decision, which was the narrowest of the three major opinions in the case.25 Similar bills were
introduced in the 112th and 113th Congresses; there also was no legislative action on them.
Enacting legislation to either broaden or restrict CWA jurisdiction would likely require EPA and
the Corps to issue new regulations, leading to another lengthy rulemaking process and potentially
to more legal challenges in the future.
So far, congressional consensus on legislation to redefine CWA jurisdiction has been elusive.
While the President might sign a bill such as the Clean Water Authority Restoration Act
introduced in the past, passage of such legislation by the Senate and House in the 114th Congress
is unlikely. On the other hand, if the House and Senate were to pass legislation to narrowly define
CWA jurisdiction, the President likely would veto it. As with the other options previously
discussed, a bill would need the President’s signature, or the votes of two-thirds majorities in both
chambers to override his veto.
Conclusion
This report has discussed four legislative options that Congress could consider to halt or redirect
EPA and the Corps’ “waters of the United States” rule: the Congressional Review Act,
appropriations bill limitations, targeted legislation, and broad amendments to the Clean Water
Act. Each option faces a steep path to enactment.
Finally, it is noteworthy that some of the options—a CRA resolution and some current forms of
targeted legislation—would not only block EPA and the Corps from adopting, implementing or
enforcing the rule, but also would prohibit them from developing a similar rule. As described
previously, blocking both the rule and future action (e.g., H.R. 594) or requiring the agencies to
restart the rulemaking process (e.g., H.R. 1732 and S. 1140) would leave in place the status quo,
with determinations of CWA jurisdiction being made pursuant to existing regulations, non-
binding agency guidance issued in 2003 and 2008, and jurisdictional determinations done by 38
separate Corps district offices that in many cases require time-consuming, case-specific
evaluation by regulatory staff.
Stakeholder groups involved in the “waters of the United States” issue find agreement on few
aspects of the issue. Some support the rule, some prefer the status quo rather than a rule that they
consider unclear, and some have concerns with the rule but do support clarifying the extent of
CWA-regulated waters. Whether or how the views of these stakeholders might change—
especially now that the final rule has been announced—is unknown for now.


25 Under this bill, CWA jurisdictional waters are waters that are navigable-in-fact or are permanent, standing,
continuously flowing waters that connect to navigable-in-fact waters. See CRS Report RL33263, The Wetlands
Coverage of the Clean Water Act (CWA): Rapanos and Beyond
, by Robert Meltz and Claudia Copeland, for discussion
of Justice Scalia’s opinion in Rapanos.
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The “Waters of the United States” Rule: Congressional Response and Options

Author Contact Information

Claudia Copeland

Specialist in Resources and Environmental Policy
ccopeland@crs.loc.gov, 7-7227


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