; and (II) may make such returned amounts available only for assistance under this subparagraph. (B) Moving costs The Secretary may provide supplemental fees under this subsection to public housing agencies for the costs of providing, on behalf of families assisted under subsection (o), assistance to cover the reasonable costs of moving into a new assisted dwelling unit. (C) Authorization of appropriations There is authorized to be appropriated to the Secretary such sums as may be necessary for assistance under subparagraphs (A) and (B). . 3. Rental security deposit assistance under HOME program (a) Eligible use Section 212(a) of the Cranston-Gonzalez National Affordable Housing Act ( 42 U.S.C. 12742(a) ) is amended by inserting after paragraph (3) the following new paragraph: (4) Security deposit assistance (A) In general A participating jurisdiction may use funds provided under this subtitle to provide loans or grants to very low- and low-income families for security deposits for rental of dwelling units, regardless of whether the family is provided tenant-based rental assistance pursuant to paragraph (3). (B) Requirement Each participating jurisdiction that provides loans or grants under subparagraph (A)— (i) shall require the owner of the dwelling unit for which security deposit assistance is provided under that subparagraph to return any unused amounts of security deposit assistance upon the termination of the family’s tenancy