The National Flood Insurance Program (NFIP) is authorized by the National Flood Insurance Act of 1968, and was reauthorized until September 30, 2017, by the Biggert-Waters Flood Insurance Reform Act of 2012 (BW-12). Congress amended elements of BW-12, but did not extend the NFIP's authorization further in the Homeowner Flood Insurance Affordability Act of 2014 (HFIAA). The NFIP received a short-term reauthorization through December 8, 2017, a second short-reauthorization through December 22, 2017, and a third short-term reauthorization through January 19, 2018. The NFIP lapsed between January 20 and January 22, 2018, and received another short-term reauthorization until February 8, 2017. The NFIP is managed by the Federal Emergency Management Agency (FEMA), through its subcomponent Federal Insurance and Mitigation Administration (FIMA). The NFIP has two main policy goals: (1) to provide access to primary flood insurance, thereby allowing for the transfer of some of the financial risk of property owners to the federal government; and (2) to mitigate and reduce the nation's comprehensive flood risk through the development and implementation of floodplain management standards. A longer-term objective of the NFIP is to reduce federal expenditure on disaster assistance after floods. As of October 2017, the NFIP had 5 million flood insurance policies providing nearly $1.27 trillion in coverage, with over 22,000 communities in 50 states and 6 other jurisdictions participating in the NFIP. As a public insurance program, the goals of the NFIP were originally designed differently from the goals of private-sector companies. As currently authorized, the NFIP also encompasses social goals to provide flood insurance in flood-prone areas to property owners who otherwise would not be able to obtain it, and to reduce government's cost after floods. From the inception of the NFIP, the program has been expected to achieve multiple objectives, some of which may conflict with one another: To ensure reasonable insurance premiums for all. To have risk-based premiums that would make people aware of and bear the cost of their floodplain location choices. To secure widespread community participation in the NFIP and substantial numbers of insurance policy purchases by property owners. To earn premium and fee income that, over time, covers claims paid and program expenses. Congress has authorized FEMA to borrow no more than $30.425 billion from the U.S. Treasury in order to operate the NFIP. At the beginning of the 2017 hurricane season, the NFIP owed $24.6 billion to the Treasury. On September 22, 2017, the NFIP borrowed the remaining $5.825 billion from the Treasury to cover claims from Hurricane Harvey, Hurricane Irma, and Hurricane Maria, reaching the NFIP's authorized borrowing limit of $30.425 billion. On October 26, 2017, Congress cancelled $16 billion of NFIP debt, making it possible for the program to pay claims for Hurricanes Harvey, Irma, and Maria. This represents the first time that NFIP debt has been cancelled, although Congress appropriated funds between 1980 and 1985 to repay NFIP debt. FEMA borrowed another $6.1 billion on November 9, 2017, to fund estimated 2017 losses, including those incurred by Hurricanes Harvey, Irma, and Maria and anticipated programmatic activities, bringing the debt up to $20.525 billion. The NFIP currently has $9.9 billion of remaining borrowing authority. The statute for the NFIP does not contain a comprehensive expiration, termination, or sunset provision for the whole of the program. Rather, the NFIP has multiple different legal provisions that generally tie to the expiration of key components of the program. Unless reauthorized or amended by Congress, the following will occur after February 8, 2018: The authority to provide new flood insurance contracts will expire. Flood insurance contracts entered into before the expiration would continue until the end of their policy term of one year. The authority for NFIP to borrow funds from the Treasury will be reduced from $30.425 billion to $1 billion. Other activities of the program would technically remain authorized following February 8, 2018, such as the issuance of Flood Mitigation Assistance (FMA) grants. However, the expiration of the key authorities described above would have varied and generally serious effects on these remaining NFIP activities. The House Financial Services Committee completed markup on June 21, 2017, of seven bills to reform and reauthorize the NFIP. The 21 st Century Flood Reform Act ( H.R. 2874 ) came to the House floor under H.Res. 616 , and included provisions from the six other bills. H.R. 2874 passed the House on a vote of 237-189 on November 14, 2017. Three bills have been introduced in the Senate to reauthorize the NFIP: S. 1313 (Flood Insurance Affordability and Sustainability Act of 2017), S. 1368 (Sustainable, Affordable, Fair and Efficient [SAFE] National Flood Insurance Program Reauthorization Act of 2017), and S. 1571 (National Flood Insurance Program Reauthorization Act of 2017). None of these bills have yet been considered by the Senate Committee on Banking, Housing, and Urban Affairs, the committee assigned all three Senate bills. The remainder of this report will summarize relevant background information and proposed changes to selected areas of the NFIP in H.R. 2874 , which would reauthorize the NFIP until September 30, 2022, among other things. The report does not examine every provision in detail, but focuses on selected provisions which would introduce significant changes to the NFIP or where the effect of the provision may not be clear. As of October 2017, the written premium on approximately 5 million policies in force was $3.6 billion. Included within NFIP premiums are several fees and surcharges mandated by law on flood insurance policies. First, the Federal Policy Fee was authorized by Congress in 1990 and helps pay for the administrative expenses of the program, including floodplain mapping and some of the insurance operations. The amount of the Federal Policy Fee is set by FEMA and can increase or decrease year to year. As of October 2017, the fee is $50 for Standard Flood Insurance Policies (SFIPs), $25 for Preferred Risk Policies (PRPs), and $25 for contents-only policies. Second, a reserve fund assessment was authorized by Congress in BW-12 to establish and maintain a Reserve Fund to cover future claim and debt expenses, especially those from catastrophic disasters. By law, FEMA is required to maintain a reserve ratio of 1% of the total loss exposure through the reserve fund assessment. However, FEMA is allowed to phase in the reserve fund assessment to obtain the ratio over time, with an intended target of not less than 7.5% of the 1% reserve fund ratio in each fiscal year. From April 2016, using its discretion, FEMA began charging every NFIP policy a reserve fund assessment equal to 15% of the premium charged for both SFIPs and PRPs. The reserve fund assessment has increased from its original status, in October 2013, of 5% on all SFIPs, and 0% on PRPs. In addition to the reserve fund assessment, all NFIP policies are also assessed a surcharge following the passage of HFIAA. The amount of the surcharge is dependent on the type of property being insured. For primary residences, the charge is $25; for all other properties, the charge is $250. Revenues from the surcharge are deposited into the Reserve Fund. Except for certain subsidies, flood insurance rates in the NFIP are directed to be "based on consideration of the risk involved and accepted actuarial principles," meaning that the rate is reflective of the true flood risk to the property. However, Congress has directed FEMA not to charge actuarial rates for certain categories of properties and to offer discounts to other classes of properties in order to achieve the program's objective that owners of existing properties in flood zones could afford flood insurance. There are three main categories of properties which pay less than full risk-based rates: pre-FIRM properties, newly mapped properties, and grandfathered properties. Structures built or substantially improved before December 31, 1974, or before FEMA published the first FIRM for their community, whichever was later, are referred to as pre-FIRM structures. Policies on such structures are allowed to have lower premiums than what would be expected to cover predicted claims. The availability of this pre-FIRM subsidy was intended to allow preexisting floodplain properties to contribute in some measure to prefunding their recovery from a flood disaster instead of relying solely on federal disaster assistance. In essence, the flood insurance could distribute some the financial burden among those protected by flood insurance and the public. As of March 2017, approximately 16.1% of all NFIP policies received a pre-FIRM subsidy. Historically, the total number of pre-FIRM policies is relatively stable, but the percentage of those policies by comparison to the total policy base has decreased. The pricing subsidy for pre-FIRM policies is progressively being phased out of the NFIP at a rate between 5% and 18% for primary residences and 25% for all other categories, as was initially required under Section 100205 of BW-12, and revised by Sections 3 and 5 of HFIAA. Congress introduced a new form of subsidy in HFIAA for owners of properties newly mapped into a Special Flood Hazard Area (SFHA). The newly mapped procedure applies to properties previously in zones of moderate or minimal flood hazards which are newly mapped into a SFHA on or after April 1, 2015, if the applicant obtains coverage that is effective within 12 months of the map revision date.