; (2) annual renewals of the vouchers allocated under subsection (c); and (3) administrative fees for vouchers allocated under subsection (c). (b) Eligible households Amounts made available under subsection (a) may be used only for providing rental housing assistance under section 8(o) of the United States Housing Act of 1937 ( 42 U.S.C. 1437f(o) ) for an eligible family who initially— (1) has an income that does not exceed 50 percent of the maximum income limitation for extremely low-income families established by the Secretary of Housing and Urban Development (in this section referred to as the Secretary ) pursuant to section 3(b)(2)(C) of the United States Housing Act of 1937