The Department of Civil Aviation (DCA) Thai: กรมการบินพลเรือน) is the aviation authority of Thailand. Its responsibilities include prescribing, regulating, and auditing Thai civil aviation. The DCA manages Thailand's 28 domestic airports. Thailand's international airports (BKK, DMK, HKT, CNX, CEI, and HDY), are managed by AOT. DCA's stated vision is to "...drive the nation's civil aviation to gain acceptance and be competitive worldwide.