32 C.F.R. § 705.33
(c) Armed Forces musical units may be authorized to provide certain specified musical programs in the public domain. The performance must not place military musicians in competition with professional civilian musicians. Background, dinner, dance or other social music cannot be authorized. The specified programs which may be authorized usually include a short opening or closing patriotic presentation. Musical selections normally consist of a medley of military or patriotic songs, honors to the President or Vice President (if he is there), or music to accompany the presentation of colors by a Color Detail.
(1) Armed Forces musical units may be authorized to participate in official government, military and civic functions.
(d) Bands, drill teams and other units can normally participate at no cost to the sponsor if the event is within the installation's immediate community relations area (approximately 100-mile radius).
(3) Requests for Armed Forces musical or troop units when no military installation is accessible, or for the Washington, DC-based ceremonial bands or troop units (when the event is outside the Washington, DC area), should be addressed to the parent Service of the unit:
(I) U.S. Army Chief of Public Information, Department of the Army, Washington, DC 20310. (II) U.S. Navy Chief of Information, Code OI-321, Department of the Navy, Washington, DC 20350. (III) U.S. Air Force Director of Information, Secretary of the Air Force, Community Relations Division, Washington, DC 20330. (IV) U.S. Marine Corps Commandant of the Marine Corps, Code AG, Headquarters, U.S. Marine Corps, Washington, DC 20380.
(4) Armed Forces units may not be authorized to participate when: