24 CFR §888.320

1. (a)Determining the amount of the new Contract Rent. Project owners eligible for retroactive payments, as described in § 888.301(c), may request a one-time Contract Rent determination, to be effective as described in paragraph (c) of this section. The request for a one-time rent determination must be made when submitting a request for retroactive payments, as described in § 888.315. If no claim for retroactive payments is made, an owner may submit only the request for a one-time rent determination, provided the owner is eligible for retroactive payments. The new Contract Rent under this provision will be the greater of:
   1. (1)The Contract Rent currently approved by HUD (or the Contract Administrator); or
   2. (2)An amount equal to the applicable AAF multipled by the Contract Rent minus debt service, calculated for each year from October 1, 1979, to May 31, 1991.
2. (b)Currently approved rent. The Contract Rent currently approved by HUD (or the Contract Administrator) is the Contract Rent stated in the most recent amendment to the HAP Contract signed by both HUD (or the Contract Administrator) and the owner, or as shown on HUD Form 92458 (Rental Schedule) if the most recent amendment to the HAP Contract cannot be located.
3. (c)Effective date of new Contract Rent. The new Contract Rent, determined under paragraph (a) of this section, will be effective on May 31, 1991.