
 
 
Updated October 8, 2021
A Brief Introduction to the National Flood Insurance Program
The National Flood Insurance Program (NFIP) is the 
communities to adopt more rigorous floodplain 
primary source of flood insurance coverage for residential 
management standards. 
properties in the United States. The NFIP has two main 
NFIP flood insurance policies are sold only in participating 
policy goals: (1) to provide access to primary flood 
communities and are offered to both property owners and 
insurance, thereby allowing for the transfer of some of the 
renters and to residential and nonresidential properties. 
financial risk of property owners to the federal government; 
NFIP policies have relatively low coverage limits, 
and (2) to mitigate and reduce the nation’s comprehensive 
particularly for nonresidential properties or properties in 
flood risk through the development and implementation of 
high-cost areas. The maximum coverage for single-family 
floodplain management standards. A longer-term objective 
dwellings (which also includes single-family residential 
of the NFIP is to reduce federal expenditure on disaster 
units within a 2-4 family building) is $100,000 for contents 
assistance after floods. As a public insurance program, the 
and up to $250,000 for building coverage. The maximum 
goals of the NFIP are different from the goals of private-
available coverage limit for other residential buildings is 
sector insurance companies. It encompasses social goals to 
$500,000  for building coverage and $100,000 for contents 
provide flood insurance in flood-prone areas to property 
coverage, and the maximum coverage limit for 
owners who otherwise would not be able to obtain it and to 
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 Mapping 
flood-risk information through flood maps, requires 
The NFIP approaches the goal of reducing comprehensive 
community land-use and building-code standards, 
flood risk primarily by requiring participating communities 
contributes to community resilience by providing a 
to collaborate with FEMA to develop and adopt flood maps 
mechanism to fund rebuilding after a flood, and offers 
called Flood Insurance Rate Maps (FIRMs). An area of 
grants and incentive programs for household- and 
specific focus of the FIRM is the Special Flood Hazard 
community-level investments in flood-risk reduction. 
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 million policies 
provide the basis for identifying properties whose owners 
providing over $1.3 trillion in coverage. The program 
are required to purchase flood insurance and establishing 
collects about $4 billion in annual premium revenue. Floods 
floodplain management standards that communities must 
are the most common natural disaster in the United States. 
adopt and enforce as part of their participation in the NFIP. 
All 50 states, plus DC, Puerto Rico, Guam, American 
There is no consistent, definitive timetable for revising and 
Samoa, the U.S. Virgin Islands, and the Northern Mariana 
updating FIRMs for a particular community. Generally, 
Islands have experienced flood events since May 2018.  
flood maps may require updating after significant new 
building development in or near the flood zone, changes to 
Structure of the NFIP 
flood-protection systems, or environmental changes in the 
The NFIP is managed by the Federal Emergency 
community. Statutory guidelines set out the procedure for 
Management Agency (FEMA) through its subcomponent, 
developing new FIRMs for a community. For example, 
the Federal Insurance and Mitigation Administration. A 
FEMA is required to conduct extensive communication and 
core design feature of the NFIP is that communities are not 
outreach efforts with the community during the mapping 
required to participate in the program by any law or 
process, which includes several review and comment 
regulation, but instead participate voluntarily in order to 
periods of 30 to 90 days. Communities and individuals also 
obtain access to NFIP flood insurance. Communities that 
have legal recourse to appeal the FIRM updating process. 
choose to participate in the NFIP are required to adopt land 
After a map is finalized and adopted by a community, it can 
use and control measures with effective enforcement 
still be revised to correct for errors in map accuracy. To 
provisions and to regulate development in the floodplain. 
correct these inaccuracies, FEMA allows individuals and 
FEMA has set forth in federal regulations the minimum 
communities to request letters amending or revising the 
standards required for participation in the NFIP; however, 
flood map. 
these standards have the force of law only because they are 
adopted and enforced by a state or local government. Legal 
The Mandatory Purchase Requirement 
enforcement of the floodplain management standards is the 
In a community that participates or has participated in the 
responsibility of the participating NFIP community, which 
NFIP, property owners in the mapped SFHA are required to 
can elect to adopt higher standards as a means of mitigating 
purchase flood insurance as a condition of receiving a 
flood risk. In addition, FEMA operates a program, called 
federally backed mortgage. Federal agencies, federally 
the Community Rating System, to incentivize NFIP 
regulated lending institutions, and government-sponsored 
enterprises must require these property owners to purchase 
https://crsreports.congress.gov 
A Brief Introduction  to the National  Flood  Insurance Program 
flood insurance as a condition of any mortgage that these 
been cancelled, although Congress appropriated funds 
entities make, guarantee, or purchase. To comply with this 
between 1980 and 1985 to repay NFIP debt. 
mandate, property owners may purchase flood insurance 
Risk Rating 2.0 
through the NFIP or through a private company, as long as 
FEMA is introducing a new pricing methodology, known as 
the private flood insurance meets the condition set by 
Risk Rating 2.0, which represents the biggest change to the 
statute that it “provides flood insurance coverage which is 
at least as broad as the coverage” of the NFIP, among other 
way the NFIP calculates flood insurance premiums since 
the program began in 1968. Premiums calculated under 
conditions. The mandatory purchase requirement is 
Risk Rating 2.0 will  reflect an individual property’s flood 
enforced by the lender, rather than FEMA. Property owners 
risk, reflect more types of flood risk, and set risk-based 
who do not obtain flood insurance when required may find 
rates. New policies written on or after October 1, 2021, will 
they are not eligible for certain types of disaster assistance 
after a flood. 
be calculated using the new rating methodology. All 
existing policies renewing on or after April 1, 2022, will be 
Financial Standing of the NFIP 
calculated using Risk Rating 2.0 methodology. 
The NFIP is funded from premiums, fees, and surcharges 
paid by NFIP policyholders; direct annual appropriations 
Reauthorization of the NFIP 
for specific costs of the NFIP (currently only for the flood 
Since the end of FY2017, 17 short-term NFIP 
hazard mapping and risk analysis program); and borrowing 
reauthorizations have been enacted. The NFIP is currently 
from the Treasury when the balance of the National Flood 
authorized until December 3, 2021. The statute for the 
Insurance Fund is insufficient to pay the NFIP’s obligations 
NFIP does not contain a comprehensive expiration, 
(e.g., insurance claims). The NFIP was not designed to 
termination, or sunset provision for the whole of the 
retain funding to cover claims for truly extreme events; 
program. Rather, the NFIP has multiple different legal 
instead, the statute allows the program to borrow money 
provisions that generally tie to the expiration of key 
from the Treasury for such events. For most of the NFIP’s 
components of the program. Unless reauthorized or 
history, the program was able to borrow relatively small 
amended by Congress, the following will occur on 
amounts from the Treasury to pay claims and then repay the 
December 3, 2021:  (1) the authority to provide new flood 
loans with interest. However, this changed when Congress 
insurance contracts will expire; however, insurance 
increased the level of NFIP borrowing to $20.775 billion to 
contracts entered into before the expiration would continue 
pay claims in the aftermath of the 2005 hurricane season 
until the end of their policy term of one year; and (2) the 
(particularly Hurricanes Katrina, Rita, and Wilma). 
authority for NFIP to borrow funds from the Treasury will 
Congress increased the borrowing limit again following 
be reduced from $30.425 billion to $1 billion.  
Hurricane Sandy to its current limit of $30.425  billion.  
CRS Products About the NFIP 
CRS Report R44593, Introduction to the National Flood 
The 2017 hurricane season was the second-largest claims 
year in the NFIP’s history—
Insurance Program (NFIP). 
second only to the 2005 
hurricane season. At the beginning of the 2017 hurricane 
CRS Report R45999, National Flood Insurance Program: 
season, the NFIP owed $24.6 billion. On September 22, 
The Current Rating Structure and Risk Rating 2.0. 
2017, the NFIP borrowed the remaining $5.825 billion from 
the Treasury to cover claims from Hurricane Harvey, 
reaching the NFIP’s autho
CRS Report R46095, The National Flood Insurance 
rized borrowing limit of $30.425 
Program: Selected Issues and Legislation in the 116th 
billion. On October 26, 2017,  Congress cancelled $16 
Congress.  
billion of NFIP debt to make it possible for the program to 
pay claims for Hurricanes Harvey, Irma, and Maria. FEMA 
CRS Report R45242, Private Flood Insurance and the 
borrowed another $6.1 billion on November 9, 2017,  to 
National Flood Insurance Program. 
fund estimated 2017 losses, including those incurred by 
Hurricanes Harvey, Irma, and Maria, bringing the debt back 
CRS Insight IN10450, Private Flood Insurance and the 
up to $20.525 billion. The NFIP has not needed to borrow 
National Flood Insurance Program (NFIP). 
from the Treasury since 2017. As of October 2021, the 
NFIP has $9.9 billion of remaining borrowing authority, as 
CRS Insight IN10784, National Flood Insurance Program 
well as possible reinsurance payments of up to $2.9 billion. 
Borrowing Authority. 
The NFIP’s debt is conceptually owed by current and future 
CRS Insight IN10835, What Happens If the National Flood 
participants in the NFIP, as the insurance program itself 
Insurance Program (NFIP) Lapses? 
owes the debt to the Treasury and pays for accruing interest 
on that debt through the premium revenues of 
CRS Insight IN10965, The National Flood Insurance 
policyholders. Under its current authorization, the only 
Program (NFIP), Reinsurance, and Catastrophe Bonds. 
means the NFIP has to pay off the debt is through the 
accrual of premium revenues in excess of outgoing claims, 
CRS Insight IN10784, National Flood Insurance Program 
and from payments made out of the reserve fund. For 
Borrowing Authority. 
example, since 2005 the NFIP has paid $2.82 billion in 
principal repayments and $5.26 billion in interest to service 
the debt through the premiums collected on insurance 
Diane P. Horn, Analyst in Flood Insurance and Emergency 
policies. The cancellation of $16 billion of NFIP debt in 
Management 
October 2017 represents the first time that NFIP debt has 
https://crsreports.congress.gov 
A Brief Introduction  to the National  Flood  Insurance Program 
 
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  15 · UPDATED