Icao Doc 8168 Volume — 3

ICAO Doc 8168 Volume III, "Procedures for Air Navigation Services (PANS-OPS) – Aircraft Operating Procedures," establishes the primary global standard for flight crew operational procedures. Established in 2018, the current edition includes Amendment No. 3 and covers critical areas like approach, altimeter, and holding procedures. Purchase the document via the ICAO Store Foundation for Aviation Competence (FFAC) Aircraft Operations

Criteria and requirements for establishing the altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes. International Civil Aviation Organization Implementation and Status icao doc 8168 volume 3