in the preparation for critical events, ATS units and airport operators, shall coordinate the relevance and content of the contingency procedures with the Network Manager and local ATFM units, aircraft operators affected by critical events, and as appropriate the airport slot coordinators, including any adjustment to priority rules.
améliorer la transparence de pratiques de gestion des fréquences qui permettent une évaluation exacte de l’utilisation efficace des fréquences la détermination de solutions pour répondre aux demandes de fréquences futures;