; and (B) the percentage of properties with Federally backed mortgages located in the 500-year floodplain that are covered by flood insurance that would satisfy the requirement described in subparagraph (A) if that requirement applied to such properties. (d) Report Not later than 18 months after the date of enactment of this Act, the Comptroller General of the United States shall submit to the Committee on Banking, Housing, and Urban Affairs of the Senate and the Committee on Financial Services of the House of Representatives a report regarding the results of the study conducted under subsection (b). II Mitigation and mapping 201. Mitigation for high-risk properties (a) In general Section 203 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5133 ) is amended by adding at the end the following: (n) Flood mitigation activities The President shall set aside from the Disaster Relief Fund an amount equal to 10 percent of the average amount appropriated to the Fund during the preceding 10 fiscal years to provide assistance for mitigation activities under section 1366 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4104c ) for— (1) severe repetitive loss structures