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 research and development, $793,000, to remain available until September 30, 2025. Federal emergency management agency OPERATIONS AND SUPPORT For necessary expenses of the Federal Emergency Management Agency for operations and support, $1,483,990,000: Provided, That not to exceed $2,250 shall be for official reception and representation expenses. PROCUREMENT, CONSTRUCTION, AND IMPROVEMENTS For necessary expenses of the Federal Emergency Management Agency for procurement, construction, and improvements, $99,528,000, of which $63,278,000 shall remain available until September 30, 2026, and of which $36,250,000 shall remain available until September 30, 2028. FEDERAL ASSISTANCE (INCLUDING TRANSFER OF FUNDS) For activities of the Federal Emergency Management Agency for Federal assistance through grants, contracts, cooperative agreements, and other activities, $3,497,019,369, which shall be allocated as follows: (1) $468,000,000 for the State Homeland Security Grant Program under section 2004 of the Homeland Security Act of 2002 ( 6 U.S.C. 605 ), of which $81,000,000 shall be for Operation Stonegarden and $13,500,000 shall be for Tribal Homeland Security Grants under section 2005 of the Homeland Security Act of 2002 ( 6 U.S.C. 606 ): Provided , That notwithstanding subsection (c)(4) of such section 2004, for fiscal year 2024, the Commonwealth of Puerto Rico shall make available to local and tribal governments amounts provided to the Commonwealth of Puerto Rico under this paragraph in accordance with subsection (c)(1) of such section 2004. (2) $553,500,000 for the Urban Area Security Initiative under section 2003 of the Homeland Security Act of 2002 ( 6 U.S.C. 604 ). (3) $274,500,000 for the Nonprofit Security Grant Program under section 2009 of the Homeland Security Act