Icao Doc — 8168 Volume 3

The first edition of Volume III was approved in 2018 to separate general aircraft operating procedures from the flight-specific requirements in Volume I. It provides the "ultimate guide" on operational practices to ensure international uniformity and safety.

Volume III covers distinct from the design criteria in Volumes I and II:

A significant development is ICAO's transition from to Required Navigation Performance (RNP) . This shift requires States to transition existing RNAV approach procedures to RNP procedures, a change already reflected in ICAO amendments and national regulations. These changes are designed to reduce misunderstanding of operational approvals and flight plan requirements, paving the way for more precise and efficient global navigation. icao doc 8168 volume 3

was officially introduced to consolidate and expand the criteria for:

While ICAO frequently updates the numbering, the general structure follows a logical flow: The first edition of Volume III was approved

ICAO Doc 8168, including Volume III, is not a static document; it is a living text that evolves alongside aviation technology and safety data.

While Volumes I and II cover the "how-to" of designing procedures and general flight guidelines, Volume III acts as the operating manual for applying these procedures in daily flights. This shift requires States to transition existing RNAV

Prior to 2018, many of the operating procedures now in Volume III were part of Volume I. The creation of a dedicated Volume III allows ICAO to update operational techniques faster, keeping pace with advancements in avionics and navigation technology, such as the increased deployment of PBN procedures. 5. Why Volume III Matters in 2026

It provides criteria for approving operators to conduct: