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. 229. (a) 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. (b) The Director of the United States Secret Service may enter into agreements to provide such protection on a fully reimbursable basis. 230. For purposes of section 503(a)(3) of this Act, up to $15,000,000 may be reprogrammed within United States Secret Service—Operations and Support . 231. 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 Appropriations of the House of Representatives and the Senate 10 or more days in advance, or as early as practicable, prior to such expenditures. III PROTECTION, PREPAREDNESS, RESPONSE, AND RECOVERY Cybersecurity and infrastructure security agency OPERATIONS AND SUPPORT For necessary expenses of the Cybersecurity and Infrastructure Security Agency for operations and support, $2,382,814,000, of which $24,424,000 shall remain available until September 30, 2025: Provided, That not to exceed $3,825 shall be for official reception and representation expenses. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For necessary expenses of the Cybersecurity and Infrastructure Security Agency for procurement, construction, and improvements, $489,401,000, to remain available until September 30, 2026. RESEARCH AND DEVELOPMENT For necessary expenses of the Cybersecurity and Infrastructure Security Agency for