These EUROCONTROL Guidelines for Contingency planning of Air Navigation Services are made available to EUROCONTROL and ECAC Member States to provide guidance and support in advising their National Authorities and Air Navigation Service Providers (ANSP) in the development, promulgation and application of contingency plans in compliance with the Convention on International Civil Aviation, Annex 11, Chapter 2.30, on Contingency arrangements and Commission Regulation (EC) No 2096/2005 of 20 December 2005 laying down common requirements for the provision of air navigation services, Annex 1 § 8.2.