design, and architect and engineer services, as authorized by law, unless the Secretary of the Air Force determines that additional obligations are necessary for such purposes and notifies the Committees on Appropriations of both Houses of Congress of the determination and the reasons therefor. Military construction, defense- W ide For acquisition, construction, installation, and equipment of temporary or permanent public works, installations, facilities, and real property for activities and agencies of the Department of Defense (other than the military departments), as currently authorized by law, $2,234,517,000, shall be used for the projects, and in the amounts specified under the heading Military Construction, Defense-Wide in the report accompanying this Act, to remain available until September 30, 2025: Provided , That, of the amount, not to exceed $179,976,000 shall be available for study, planning, design, and architect and engineer services, as authorized by law, unless the Secretary of Defense determines that additional obligations are necessary for such purposes and notifies the Committees on Appropriations of both Houses of Congress of the determination and the reasons therefor. Military construction, army national guard For construction, acquisition, expansion, rehabilitation, and conversion of facilities for the training and administration of the Army National Guard, and contributions therefor, as authorized by chapter 1803 of title 10, United States Code, and Military Construction Authorization Acts, $349,437,000, shall be used for the projects, and in the amounts specified under the heading Military Construction, Army National Guard in the report accompanying this Act, to remain available until September 30, 2025: Provided , That, of the amount, not to exceed $44,593,000 shall be available for study, planning, design, and architect and engineer services, as authorized by law, unless the Director of the Army National Guard determines that additional obligations are necessary for such purposes and