The Civil Aviation Authority of the Philippines (CAAP; Filipino: Pangasiwaan ng Abyasyon Sibil ng Pilipinas) is the national aviation authority of the Philippines and is responsible for implementing policies on civil aviation to assure safe, economic and efficient air travel. The agency also investigates aviation accidents via its Aircraft Accident Investigation and Inquiry Board. Formerly Air Transportation Office, it is a government-owned and controlled corporation attached to the Department of Transportation for the purpose of policy coordination.