(1) the acquisition, by purchase, lease, transfer, construction, expansion, rehabilitation, or conversion of facilities necessary for the proper development, training, operation, and maintenance of the reserve components of the armed forces, including troop housing and messing facilities;
(2) the joint use of those facilities by units of two or more of those reserve components, to the greatest practicable extent for efficiency and economy;
(3) the use of those facilities, in time of war or national emergency, by those units and other units of the armed forces, to the greatest practicable extent for efficiency and economy; and
(4) any other use of those facilities by the United States, in time of war or national emergency, to the greatest practicable extent for efficiency and economy.
Structure US Code
Subtitle E— Reserve Components
PART V— SERVICE, SUPPLY, AND PROCUREMENT
CHAPTER 1803— FACILITIES FOR RESERVE COMPONENTS
§ 18233a. Notice and wait requirements for certain projects
§ 18233b. Authority to carry out small projects with operation and maintenance funds
§ 18235. Administration; other use permitted by Secretary
§ 18236. Contributions to States; other use permitted by States
§ 18237. Supervision of construction: compliance with State law