El ASAP, que recoge los datos de 2011, contiene información sobre este tipo de acuerdos obtenida de la Organización de Aviación Civil Internacional o extraída de los Exámenes de las Políticas Comerciales de la OMC, y estadísticas sobre el tráfico regular de pasajeros facilitadas por la Asociación de Transporte Aéreo Internacional.

ASAP’s Air Liberalization Index provides a measure of the openness of each air services agreement. The index was devised by the WTO Secretariat in the context of its review of air transport services mandated by the General Agreement on Trade in Services (GATS), Information may be obtained by signatory or groupings of signatories.  The results are displayed on a world map along with the underlying data.

The Air Services Agreement Projector is available here.