(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 subsection required to be submitted after the expiration of the 1-year period beginning on the date of enactment of the Riegle Community Development and Regulatory Improvement Act of 1994 and inserting first annual report under this subsection required to be submitted after the expiration of the 1-year period beginning on the date of enactment of the 21st Century Flood Reform Act and every such second annual report thereafter . (e) Mandatory purchase study