The Interservice Physician Assistant Program (IPAP) was formed in 1996 by the assimilation of three service programs (Army, Air Force, and Navy). Applicants are selected from each service and upon successful completion of the program become commissioned officers within their respective medical corps. Clinical training takes place within military treatment facilities across the United States. Located in San Antonio, Texas, the program graduates about 169 PAs a year. Graduates are deployed to attend to service personnel, refugees, civilians, and victims of epidemics. The IPAP is unique in that it is the largest PA program in the world and its applicant pool is restricted to military personnel.