institution. (b) Funding sources and gifts (1) Authorization of appropriations There are authorized to be appropriated to the District of Columbia such sums as may be necessary to enable the Mayor to provide financial assistance under the program. Funds appropriated pursuant to this authorization of appropriations shall remain available until expended. (2) Transfer of funds The Mayor may accept the transfer of funds from Federal agencies and use any funds so transferred for purposes of providing assistance under the program. There is authorized to be appropriated to the head of any executive branch agency such sums as may be necessary to permit the transfer of funds to the Mayor to provide financial assistance under this section. (3) Donations The Mayor may accept, use, and dispose of donations of services or property for purposes of providing assistance under the program. 205. Definition In this title, the term approved institution of higher education means an institution of higher education (as defined in section 102 of the Higher Education Act of 1965 ( 20 U.S.C. 1002 )) that— (1) is eligible to participate in the student financial assistance programs under title IV of the Higher Education Act of 1965 ( 20 U.S.C. 1070 et seq.)