The National Guard has two elements-the Army National Guard and the Air National Guard-that mostly consist of part-time forces responsible for both federal and state missions. The Army Reserve and Air Force Reserve (Reserves) also largely consist of part-time forces and are responsible for only federal missions. In addition to these part-time forces, both the National Guard and the Reserves use full-time personnel for duties that can include pay processing, personnel actions, preparing and monitoring training schedules, and other tasks that cannot be effectively executed through the use of part-time personnel. These full-time positions-which DOD calls full-time support-in general are more expensive than part-time personnel because they are paid as full-time employees and receive greater compensation and benefits such as retirement, health-care, and education.