; or (B) 10 percent of the amount required under subsection (b). (e) Limitation on reserve ratio If, in any fiscal year, the Administrator determines that the amount required under subsection (b) cannot be obtained, the Administrator shall submit to Congress a report that— (1) describes and details the specific concerns of the Administrator regarding the consequences of that amount not being obtained; (2) demonstrates how the consequences described in paragraph (1) would harm the long-term financial soundness of the Program; and (3) indicates the maximum attainable amount for that fiscal year. (f) Investment The Secretary of the Treasury shall invest such amounts of the Reserve Fund as the Secretary determines advisable in obligations issued or guaranteed by the United States. 306. Rule of construction Nothing in this title may be construed to— (1) limit the National Flood Insurance Program, including the ability of a person to purchase flood insurance under the National Flood Insurance Program to satisfy the mandatory purchase requirement