Complex sentence: The Philippines' Civil Aviation Authority formerly Air Transportation Office, abbreviated as CAAP, is an agency of the Philippine government under the Department of Transportation and Communications responsible for implementing policies on civil aviation to assure safe, economic and efficient air travel.
Split into simpler sentences: The Philippines' Civil Aviation Authority formerly Air Transportation Office, abbreviated as CAAP, is an agency of the Philippine government under the Department of Transportation and Communications. It is the national aviation authority of the Philippines, responsible for implementing policies on civil aviation to assure safe, economic and efficient air travel.