Pub. L. 82-150, tit. III, sec. 301

Sec. 301. The United States Air Force shall consist of the Regular Air Force, the Air Force Reserve, the Air National Guard of the United States and the Air National Guard while in the service of the United States; and shall include persons inducted, enlisted, or appointed without specification of component in the Air Force, and all persons serving in the Air Force under call or conscription under any provision of law, including members of the Air National Guard of the several States, Territories, and the District of Columbia when in the service of the United States pursuant to call as provided by law.