10 U.S.C. § 12404 - U.S. Code - Unannotated Title 10. Armed Forces § 12404. Army and Air National Guard of the United States: mobilization; maintenance of organization

During an initial mobilization, the organization of a unit of the Army National Guard of the United States or of the Air National Guard of the United States ordered into active Federal service shall, so far as practicable, be maintained as it existed on the date of the order to duty.