ICAO Annex 2

ICAO Annex 2 sets international standards for flight schedules, including procedures for communication, coordination, and documentation related to airline operations. It aims to ensure orderly and timely air traffic worldwide by defining how airlines and air traffic services share flight information, manage delays, and handle emergencies. The annex promotes safety and efficiency in international aviation by establishing consistent practices that help prevent misunderstandings and disruptions during flights crossing different countries' airspace.