such heading. 230. Funds made available for Overseas Contingency Operations/Global War on Terrorism under the heading Coast Guard—Operations and Support may be allocated by program, project, and activity, notwithstanding section 503 of this Act. 231. Amounts deposited into the Coast Guard Housing Fund in fiscal year 2021 shall be available until expended to carry out the purposes of section 2946 of title 14, United States Code, and shall be in addition to funds otherwise available for such purposes. 232. The United States Secret Service is authorized to obligate funds in anticipation of reimbursements from executive agencies, as defined in section 105 of title 5, United States Code, for personnel receiving training sponsored by the James J. Rowley Training Center, except that total obligations at the end of the fiscal year shall not exceed total budgetary resources available under the heading United States Secret Service—Operations and Support at the end of the fiscal year. 233. None of the funds made available to the United States Secret Service by this Act or by previous appropriations Acts may be made available for the protection of the head of a Federal agency other than the Secretary of Homeland Security: Provided , That the Director of the United States Secret Service may enter into agreements to provide such protection on a fully reimbursable basis. 234. Notwithstanding section 503 of this Act, up to $15,000,000 may be reprogrammed within United States Secret Service—Operations and Support if the Secretary notifies the Committees on Appropriations of the Senate and the House of Representatives not less than 15 days in advance of such reprogramming. 235. Funding made available in this Act for United States Secret Service—Operations and Support is available for travel of United States Secret Service employees on protective missions without regard to the limitations on such expenditures in this or any other Act if the Director of the United States Secret Service or a designee notifies the Committees on