This Action Plan, the key deliverable of the Airspace Infringement Initiative, presents a set of safety improvement measures and provides guidance on how they can best be implemented. The plan was developed with the support of, and active contributions from, organisations representing the airspace users, service providers, regulatory and military authorities. Notable contributions were made by the International Council of Aircraft Owner and Pilot Associations (European region), Europe Air Sports, Association of European Airlines, International Air Transport Association, the European Commission and EUROCONTROL.