; and (2) that compares premium rates charged under the Program with comparable premium rates charged under the standard flood insurance policy, controlling for comparable risk factors. 304. Use of agreed value flood protection to satisfy requirement to purchase flood insurance to receive a mortgage loan An agreed value flood protection policy shall satisfy the mandatory purchase requirement. 305. Agreed Value Flood Protection Program Reserve Fund (a) Establishment of an agreed value flood protection reserve fund In carrying out the Program, the Administrator shall establish in the Treasury of the United States an Agreed Value Flood Protection Program Reserve Fund, which shall be— (1) separate from any other accounts or funds available to the Administrator; and (2) available for meeting the expected future obligations of the Program, including— (A) the payment of claims during catastrophic loss years; and (B) the repayment of amounts outstanding under any note or other obligation issued by the Administrator under section 1309(a) of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4016(a) ). (b) Reserve ratio Subject to the phase-in requirements under subsection (d), the Reserve Fund shall maintain a balance that, together with any risk financing covering the Program, is an amount that is equal to— (1) 1.5 percent of the sum of the total potential loss exposure of all outstanding agreed value flood protection policies in force during the prior fiscal year; or (2) a higher percentage of the sum described in paragraph (1) that the Administrator determines to be appropriate, taking into consideration any circumstance that may raise a significant risk of substantial future losses to the Reserve Fund. (c) Maintenance of reserve ratio (1) In general The Administrator may establish, increase, or decrease the amount of aggregate annual policy charges to be collected for any fiscal year that are necessary in order to— (A) maintain the amount required under subsection (b)