Airspace Change Process

This publication explains the airspace change process for making a change to the notified airspace design.

CAP 1616 version 6 comes into effect on 1 October 2026.

The accompanying guidance documents are:

• Permanent airspace change proposals: CAP 1616j, Requirements and Guidance on the Airspace Change Process for Permanent Airspace Change Proposals 
• Non-permanent airspace change proposals: CAP 1616k, Requirements and Guidance on the Airspace Change Process for Non-Permanent Airspace Change Proposals 
• CAP 3299, The CAA’s Air Navigation Functions Guidance.  

Previous versions of CAP1616:

• Version 5.1 has been superseded by Version 6. It is available for reference. 
• Version 5 (published 30 October 2023, effective 2 January 2024) has been withdrawn.
• Version 4 (superseded) remains available for reference.