amounts appropriated pursuant to the authorization of appropriations in section 2403(a) and available for military construction projects outside the United States as specified in the funding table in section 3002, the Secretary of Defense may acquire real property and carry out military construction projects for the installations or locations outside the United States, and in the amounts, set forth in the following table: Defense Agencies: Outside the United States Country Installation or Location Amount Germany Geilenkirchen Air Base $30,479,000 Guam Joint Region Marianas $19,200,000 Japan Yokota Air Base $136,411,000 Worldwide Classified Classified Location $52,000,000 2402. Authorized energy conservation projects Using amounts appropriated pursuant to the authorization of appropriations in section 2403(a) and available for energy conservation projects as specified in the funding table in section 3002, the Secretary of Defense may carry out energy conservation projects under chapter 173 of title 10, United States Code. 2403. Authorization of appropriations, Defense Agencies (a) Authorization of appropriations Funds are hereby authorized to be appropriated for fiscal years beginning after September 30, 2019, for military construction, land acquisition, and military family housing functions of the Department of Defense (other than the military departments), as specified in the funding table in section 3002. (b) Limitation on total cost of construction projects Notwithstanding the cost variations authorized by section 2853 of title 10, United States Code, and any other cost variation authorized by law, the total cost of all projects carried out under section 2401 of this Act may not exceed the total amount authorized to be appropriated under subsection (a), as specified in the funding table in section 3002. XXV International Program A North Atlantic Treaty Organization Security Investment Program 2501. Authorized NATO construction and land acquisition projects The Secretary of Defense may make contributions for