
 
 
Updated July 11, 2019
A Brief Introduction to the National Flood Insurance Program
The National Flood Insurance Program (NFIP) is the 
Rating System, to incentivize NFIP communities to adopt 
primary source of flood insurance coverage for residential 
more rigorous floodplain management standards.  
properties in the United States. The NFIP has two main 
policy goals: (1) to provide access to primary flood 
NFIP flood insurance policies are sold only in participating 
insurance, thereby allowing for the transfer of some of the 
communities and are offered to both property owners and 
financial risk of property owners to the federal government; 
renters, and to residential and nonresidential properties. 
and (2) to mitigate and reduce the nation’s comprehensive 
NFIP policies have relatively low coverage limits, 
flood risk through the development and implementation of 
particularly for nonresidential properties or properties in 
floodplain management standards. A longer-term objective 
high-cost areas. The maximum coverage for single-family 
of the NFIP is to reduce federal expenditure on disaster 
dwellings (which also includes single-family residential 
assistance after floods. As a public insurance program, the 
units within a 2-4 family building) is $100,000 for contents 
goals of the NFIP are different from the goals of private-
and up to $250,000 for building coverage. The maximum 
sector insurance companies. It encompasses social goals to 
available coverage limit for other residential buildings is 
provide flood insurance in flood-prone areas to property 
$500,000 for building coverage and $100,000 for contents 
owners who otherwise would not be able to obtain it, and to 
coverage, and the maximum coverage limit for 
reduce the government’s cost after floods. The NFIP also 
nonresidential business buildings is $500,000 for building 
engages in many “noninsurance” activities in the public 
coverage and $500,000 for contents coverage. 
interest: it identifies and maps flood hazards, disseminates 
flood-risk information through flood maps, requires 
Flood Mapping 
community land-use and building-code standards, 
The NFIP approaches the goal of reducing comprehensive 
contributes to community resilience by providing a 
flood risk primarily by requiring participating communities 
mechanism to fund rebuilding after a flood, and offers 
to collaborate with FEMA to develop and adopt flood maps 
grants and incentive programs for household- and 
called Flood Insurance Rate Maps (FIRMs). An area of 
community-level investments in flood-risk reduction.  
specific focus of the FIRM is the Special Flood Hazard 
Area (SFHA). The SFHA is defined by FEMA as an area 
Over 22,000 communities in 56 states and jurisdictions 
with a 1% or greater risk of flooding every year. FIRMs 
participate in the NFIP, with more than 5.1 million policies 
provide the basis for setting insurance rates, identifying 
providing over $1.3 trillion in coverage. The program 
properties whose owners are required to purchase flood 
collects nearly $3.6 billion in annual premium revenue. 
insurance, and establishing floodplain management 
Floods are the most common natural disaster in the United 
standards that communities must adopt and enforce as part 
States, and in recent years all 50 states have experienced 
of their participation in the NFIP. There is no consistent, 
flood events.  
definitive timetable for revising and updating FIRMs for a 
particular community. Generally, flood maps may require 
Structure of the NFIP 
updating after significant new building development in or 
The NFIP is managed by the Federal Emergency 
near the flood zone, changes to flood-protection systems, or 
Management Agency (FEMA) through its subcomponent 
environmental changes in the community. Statutory 
the Federal Insurance and Mitigation Administration 
guidelines set out the procedure for developing new FIRMs 
(FIMA). A core design feature of the NFIP is that 
for a community. For example, FEMA is required to 
communities are not required to participate in the program 
conduct extensive communication and outreach efforts with 
by any law or regulation, but instead participate voluntarily 
the community during the mapping process, which includes 
in order to obtain access to NFIP flood insurance. 
several review and comment periods of 30 to 90 days. 
Communities that choose to participate in the NFIP are 
Communities and individuals also have legal recourse to 
required to adopt land use and control measures with 
appeal during the FIRM updating process. After a map is 
effective enforcement provisions and to regulate 
finalized and adopted by a community, it can still be 
development in the floodplain. FEMA has set forth in 
revised to correct for errors in map accuracy. To correct 
federal regulations the minimum standards required for 
these inaccuracies, FEMA allows individuals and commun-
participation in the NFIP; however, these standards have 
ities to request letters amending or revising the flood map. 
the force of law only because they are adopted and enforced 
by a state or local government. Legal enforcement of the 
The Mandatory Purchase Requirement 
floodplain management standards is the responsibility of 
In a community that participates or has participated in the 
the participating NFIP community, which can elect to adopt 
NFIP, property owners in the mapped SFHA are required to 
higher standards as a means of mitigating flood risk. In 
purchase flood insurance as a condition of receiving a 
addition, FEMA operates a program, called the Community 
federally backed mortgage. Federal agencies, federally 
regulated lending institutions, and government-sponsored 
https://crsreports.congress.gov 
A Brief Introduction to the National Flood Insurance Program 
enterprises must require these property owners to purchase 
the debt through the premiums collected on insurance 
flood insurance as a condition of any mortgage that these 
policies. The cancellation of $16 billion of NFIP debt in 
entities make, guarantee, or purchase. To comply with this 
October 2017 represents the first time that NFIP debt has 
mandate, property owners may purchase flood insurance 
been cancelled, although Congress appropriated funds 
through the NFIP or through a private company, as long as 
between 1980 and 1985 to repay NFIP debt. 
the private flood insurance meets the condition set by 
statute that it “provides flood insurance coverage which is 
Reauthorization of the NFIP 
at least as broad as the coverage” of the NFIP, among other 
Since the end of FY2017, 12 short-term NFIP 
conditions. The mandatory purchase requirement is 
reauthorizations have been enacted. The NFIP is currently 
enforced by the lender, rather than FEMA. Property owners 
authorized until September 30, 2019. A number of bills 
who do not obtain flood insurance when required may find 
were introduced in the 115th Congress to provide a longer-
that they are not eligible for certain types of disaster 
term reauthorization of the NFIP as well as numerous other 
assistance after a flood.  
changes to the program. The House passed H.R. 2874 (The 
21st Century Flood Reform Act) on November 14, 2017. 
Financial Standing of the NFIP 
Three bills were introduced in the Senate that would have 
The NFIP is funded from premiums, fees, and surcharges 
reauthorized the expiring provisions of the NFIP, but none 
paid by NFIP policyholders; direct annual appropriations 
of these bills were considered in the 115th Congress. In the 
for specific costs of the NFIP (currently only for the flood 
116th Congress, H.R. 3167, the National Flood Insurance 
hazard mapping and risk analysis program); and borrowing 
Program Reauthorization Act of 2019, was introduced in 
from the Treasury when the balance of the National Flood 
the House in June 2019. 
Insurance Fund is insufficient to pay the NFIP’s obligations 
(e.g., insurance claims). The NFIP was not designed to 
The statute for the NFIP does not contain a comprehensive 
retain funding to cover claims for truly extreme events; 
expiration, termination, or sunset provision for the whole of 
instead, the statute allows the program to borrow money 
the program. Rather, the NFIP has multiple different legal 
from the Treasury for such events. For most of the NFIP’s 
provisions that generally tie to the expiration of key 
history, the program was able to borrow relatively small 
components of the program. Unless reauthorized or 
amounts from the Treasury to pay claims and then repay the 
amended by Congress, the following will occur on 
loans with interest. However, this changed when Congress 
September 30, 2019: (1) the authority to provide new flood 
increased the level of NFIP borrowing to $20.775 billion to 
insurance contracts will expire; however, insurance 
pay claims in the aftermath of the 2005 hurricane season 
contracts entered into before the expiration would continue 
(particularly Hurricanes Katrina, Rita, and Wilma). 
until the end of their policy term of one year; and (2) the 
Congress increased the borrowing limit again following 
authority for NFIP to borrow funds from the Treasury will 
Hurricane Sandy to its current limit of $30.425 billion.  
be reduced from $30.425 billion to $1 billion.  
The 2017 hurricane season was the second-largest claims 
CRS Products About the NFIP 
year in the NFIP’s history—second only to the 2005 
CRS Report R44593, Introduction to the National Flood 
hurricane season. At the beginning of the 2017 hurricane 
Insurance Program (NFIP). 
season, the NFIP owed $24.6 billion. On September 22, 
2017, the NFIP borrowed the remaining $5.825 billion from 
CRS Report R44808, Federal Disaster Assistance: The 
the Treasury to cover claims from Hurricane Harvey, 
National Flood Insurance Program and Other Federal 
reaching the NFIP’s authorized borrowing limit of $30.425 
Disaster Assistance Programs Available to Individuals and 
billion. On October 26, 2017, Congress cancelled $16 
Households After a Flood. 
billion of NFIP debt, to make it possible for the program to 
pay claims for Hurricanes Harvey, Irma, and Maria. FEMA 
CRS Report R45099, National Flood Insurance Program: 
borrowed another $6.1 billion on November 9, 2017, to 
Selected Issues and Legislation in the 115th Congress. 
fund estimated 2017 losses, including those incurred by 
Hurricanes Harvey, Irma, and Maria, bringing the debt back 
CRS Report R45242, Private Flood Insurance and the 
up to $20.525 billion. As of June 2019, the NFIP has $9.9 
National Flood Insurance Program. 
billion of remaining borrowing authority and has paid 
$10.14 billion in claims in response to Hurricanes Harvey, 
CRS Insight IN10450, Private Flood Insurance and the 
Irma, and Maria, and $952.5 million in claims for the 2018 
National Flood Insurance Program (NFIP). 
hurricanes, Florence and Michael. 
CRS Insight IN10784, National Flood Insurance Program 
The NFIP’s debt is conceptually owed by current and future 
Borrowing Authority. 
participants in the NFIP, as the insurance program itself 
owes the debt to the Treasury and pays for accruing interest 
CRS Insight IN10835, What Happens If the National Flood 
on that debt through the premium revenues of 
Insurance Program (NFIP) Lapses? 
policyholders. Under its current authorization, the only 
means the NFIP has to pay off the debt is through the 
CRS Insight IN10965, The National Flood Insurance 
accrual of premium revenues in excess of outgoing claims, 
Program (NFIP), Reinsurance, and Catastrophe Bonds. 
and from payments made out of the reserve fund. For 
example, since 2005 the NFIP has paid $2.82 billion in 
CRS Insight IN10890, Closing the Flood Insurance Gap.
principal repayments and $4.2 billion in interest to service 
https://crsreports.congress.gov 
A Brief Introduction to the National Flood Insurance Program 
 
Diane P. Horn, Analyst in Flood Insurance and Emergency 
Management   
IF10988
 
 
Disclaimer 
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Information in a CRS Report should not be relied upon for purposes other than public understanding of information that has 
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https://crsreports.congress.gov | IF10988 · VERSION 7 · UPDATED