The Secretary may not approve any increase in rental payments, with respect to units in which the tenants are paying rentals in excess of 30 per centum of their incomes, in any project which is assisted under section
1484,
1485, or
1487 of this title and under section
1490a
(a)(1)(B) of this title unless the project owner is receiving, or has applied for (within the most recent period of 180 days prior to the effective date of such increase), assistance payments with respect to such project under section
1490a
(a)(2)(A) or
1490a
(a)(5) of this title or section
1437f of this title.