, is a foundational document for civil aviation authorities and operators, providing the technical and operational framework for aerodrome operating minima and low-visibility procedures.
The 4th Edition abandoned legacy definitions to mirror the updated 3D instrument approach classifications found in Annex 6:
This comprehensive breakdown covers the core updates, modern terminology, operational credits, and structure found within the official text. Core Purpose and Regulatory Framework
Coordinates with Amendments 37B, 32B, and 18B of ICAO Annex 6 (Operation of Aircraft).