The Air and Space Longevity Service Award is awarded for completing four years of Active, Air Force Reserve, or Air National Guard service. For members of the Air Force Reserve and Air National Guard, creditable service must have been in a drilling status with regular attendance of at least minimum monthly weekend drills and annual training. Air Force Reserve and Air National Guard mobilized to full-time active duty continue to accrue eligibility in the same manner as active duty Air Force personnel. Service as a student at a United States service academy, typically the USAF Academy, is also creditable so long as the member graduated. The ribbon is awarded to both officers and enlisted personnel, in contrast to service stripes which are only provided to enlisted members of the military.