The Civil Aviation Authority of the Philippines (CAAP, Tagalog pronunciation: [ˈkaʔap]; Filipino: Pangasiwaan sa Abyasyong 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 the Air Transportation Office, it is an independent regulatory body attached to the Department of Transportation for the purpose of policy coordination.