CAP has three missions: Aerospace Education, Cadet Programs and Operations (Emergency Services).
St Augustine Composite Squadron, is one of several squadrons serving under the command Florida Wing Civil Air Patrol. As a composite squadron, the unit's membership consist of both cadets (12-21 years old) and senior members (18 years old and older). This squadron performs the tactical application of all three of Civil Air Patrol's Congressionally mandated missions: Aerospace Education, Emergency Services, and Cadet Programs.