; and (B) if the proposed project will be sited within or partially within a 100-year floodplain, the specific risk mitigation plan. (2) Delineation of floodplain To the extent that Federal Emergency Management Agency flood hazard data are not available for a proposed major or minor military construction site, the Secretary concerned shall establish a process for delineating the 100-year floodplain using risk analysis that is consistent with the standards used to inform Federal flood risk assessments. (3) Reporting requirements For proposed projects that are to be sited within or partially within a 100-year floodplain, the Secretary concerned shall submit to the congressional defense committees a report with the following: (A) An assessment of flood vulnerability for the proposed project. (B) Any information concerning alternative construction sites that were considered, and an explanation of why those sites do not satisfy mission requirements. (C) A description of planned flood mitigation measures. (4) Minimum flood mitigation requirements When mitigating the flood risk of a major or minor military construction project within or partially within the 100-year floodplain, the Secretary concerned shall require any mitigation plan to assume an additional— (A) 2 feet above the base flood elevation for non-mission critical buildings, as determined by the Secretary; and (B) 3 feet above the base flood elevation for mission-critical buildings, as determined by the Secretary. (b) Disclosure requirements for Department of Defense Form 1391 Not later than 30 days after the date of the enactment of this Act, the Secretary of Defense shall amend Department of Defense Form 1391 to require, for each requested military construction project— (1) disclosure whether the project was included in the prior year's future-years defense program submitted to Congress pursuant to section 221 of title 10, United States Code