; (4) the term mandatory purchase requirement means the requirement under subsections (a) and (b) of section 102 of the Flood Disaster Protection Act of 1973 ( 42 U.S.C. 4012a ) to have flood insurance coverage; and (5) the term National Flood Insurance Program means the program established under the National Flood Insurance Act of 1968 ( 42 U.S.C. 4001 et seq.). 4. Extension of National Flood Insurance Program (a) Financing Section 1309(a) of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4016(a) ) is amended, in the first sentence, by striking September 30, 2017 and inserting September 30, 2023 . (b) Program expiration Section 1319 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4026 ) is amended by striking September 30, 2017 and inserting September 30, 2023 . I Risk mitigation 101. Community preparation for repetitively flooded areas (a) In general Section 1361 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4102 ) is amended by adding at the end the following: (e) Community preparation for repetitively flooded areas (1) Definitions In this subsection— (A) the term covered community means a community— (i) that is participating, under section 1315, in the national flood insurance program; and (ii) within which are located— (I) 50 or more repetitive loss structures; (II) 5 or more severe repetitive loss structures for which mitigation activities meeting the standards for approval under section 1366(c)(2)(A) have not been conducted; or (III) a public facility or a private nonprofit facility that has received assistance for repair, restoration, reconstruction, or replacement under section 406 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5172 ) in connection with more than 1 flooding event in the most recent 10-year period; (B) the terms private nonprofit facility and public facility have the meanings given those terms in section 102 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5122 )