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The Office for the Prevention and Investigation of Accidents in Civil Aviation and Rail (Gabinete de Prevenção e Investição de Acidentes com Aeronaves e de Acidentes Ferroviários, GPIAAF, "Office of Prevention and Investigation of Aircraft Accidents and Rail Accidents") is the Portuguese aviation and rail accident and incident investigation authority. The agency is headquartered in Lisbon. It is subordinate to the Ministry of Public Works, Transport and Communications.
"ContactosArchived June 21, 2011, at the Wayback Machine." Gabinete de Prevenção e Investigação de Acidentes com Aeronaves. Retrieved on 26 May 2011. "Praça Duque de Saldanha, 31 - 4º 1050-094 LISBOA"