The Secretary shall certify that assistance within the jurisdiction of the Department, as such term is defined in subsection (m), except that for purposes of this subsection such term shall not include any mortgage insurance provided pursuant to title II of the National Housing Act (
12 U.S.C.
1707 et seq.) to any housing project shall not be more than is necessary to provide affordable housing after taking account of assistance described in subsection (b)(1) of this section. The Secretary shall adjust the amount of such assistance awarded or allocated to an applicant to compensate in whole or in part, as the Secretary determines to be appropriate, for any changes reported under subsection (c) of this section.