The primary sources of full-time support for Air National Guard units are the dual-status military technician and guardsmen on active duty. These people perform day-to-day management, administration and maintenance. By law, dual-status military technicians are civil service employees of the federal government who must be military members of the unit that employs them. Technicians train with the unit and are mobilized with it when it's activated. Active-duty members serve under the command authority of their respective state or territorial governors until mobilized for federal duty. The Air National Guard has more than 106,000 officers and enlisted people who serve in 89 flying units and 579 mission support units.
The National Guard Bureau, both a staff and operating agency, administers the federal functions of the Army and the Air National Guard. As a staff agency, the National Guard Bureau participates with the Army and Air staffs in developing and coordinating programs that directly affect the National Guard. As an operating agency, the National Guard Bureau formulates and administers the programs for training, development and maintenance of the Army National Guard and Air National Guard and acts as the channel of communication between the Army, Air Force and the 54 states and territories where National Guard units are located.