; and (2) in section 1306(a)(1) ( 42 U.S.C. 4013(a)(1) ), by inserting , subject to subsections (f) and (g) of section 1305 before the semicolon at the end. 507. Allowance for Write Your Own companies Section 1345 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4081 ), as amended by the preceding provisions of this Act, is further amended by adding at the end the following new subsection: (g) Allowance for Write Your Own companies The allowance paid to companies participating in the Write Your Own Program (as such term is defined in section 1370 ( 42 U.S.C. 4121 )) with respect to a policy for flood insurance coverage made available under this title shall not be greater than 25 percent of the chargeable premium for such coverage. . 508. Enforcement of mandatory purchase requirements (a) Penalties Paragraph (5) of section 102(f) of the Flood Disaster Protection Act of 1973 ( 42 U.S.C. 4012a(f)(5) ) is amended by striking $2,000 and inserting $5,000 . (b) Insured depository institutions Subparagraph (A) of section 10(i)(2) of the Federal Deposit Insurance Act ( 12 U.S.C. 1820(i)(2)(A) ) is amended by striking date of enactment of the Riegle Community Development and Regulatory Improvement Act of 1994 and biennially thereafter for the next 4 years and inserting date of enactment of the 21st Century Flood Reform Act and biennially thereafter . (c) Credit unions Subparagraph (A) of section 204(e)(2) of the Federal Credit Union Act ( 12 U.S.C. 1784(e)(2)(A) ) is amended by striking date of enactment of the Riegle Community Development and Regulatory Improvement Act of 1994 and biennially thereafter for the next 4 years and inserting date of enactment of the 21st Century Flood Reform Act and annually thereafter . (d) Government-Sponsored enterprises Paragraph (4) of section 1319B(a) of the Federal Housing Enterprises Financial Safety and Soundness Act of 1992 ( 12 U.S.C. 4521(a)(4) ) is amended, in the matter after and below subparagraph (B), by striking first, third, and fifth annual reports under this