Scotland Terminal Control Area
The Scottish Terminal Control Area is the busiest and most complex airspace in Scotland, with air traffic controllers routinely managing high volumes of flights to and from Glasgow and Edinburgh Airports.
The Scottish Masterplan, developed by ACOG, sets out the coordinated changes proposed by Edinburgh and Glasgow Airports to upgrade the arrival and departure routes below 7,000ft. NATS, the UK’s main navigation service provider, is responsible for upgrading the route network above this.
The Scottish Masterplan was accepted by the CAA in September 2025. You can view it by following this link.
Stakeholder engagement
Scottish Airspace Modernisation – Public Consultation
A public consultation was launched by Glasgow and Edinburgh airports, and NATS, on 20 October 2025. The consultation, made up of proposals from Edinburgh Airport, Glasgow Airport and NATS sets out the prospective new airspace redesign for the south of Scotland. The proposals will improve efficiency, capacity and environmental performance, and stakeholders are invited to review the plans and share their feedback. The consultation is running for 14 weeks from Monday 20 October 2025 – Sunday 25 January 2026.
You can find out more information by visiting the consultation website.
Following the public consultation , the airspace sponsors will analyse the responses received. Further work will then be undertaken to incorporate feedback, where appropriate, into the final airspace change proposals and this will be submitted to the CAA for a final decision as part of Stages 4 and 5 of the CAP1616 airspace change process. You can read more about the process here.
ACOG Public Engagement Exercise
ACOG conducted a Public Engagement Exercise in 2024 to support the preparation of the Scottish Masterplan for the cluster. The feedback received during this public engagement exercise was analysed and a summary report published which set out how the feedback influenced the Scottish Masterplan.
The report can be found here.
Scottish Airspace Modernisation: ACOG documents
Scotland Airspace Change Masterplan iteration 3. The Masterplan Iteration 3 identifies where and when airspace change proposals (ACPs) are needed in the ScTMA, with indicative timelines for developing design options, conducting consultations and implementing the changes. It describes the overall airspace structure and route network envisaged by the ScTMA ACPs when viewed as a collective but without the detailed design of all the routes.
Coordinated consultations framework. This document sits alongside the airspace sponsors’ consultation strategies and expands on the high-level consultation plans set out in Masterplan Iteration 3 for Scotland, providing more information about the audiences, approach, materials, and length of the coordinated consultations.
Description of the proposed cluster-wide design. This has been produced by ACOG to sit alongside the sponsors’ detailed consultations of their ACPs. It provides background on the modernisation plans, an overall description of the cluster-wide design being proposed for Scottish airspace and a summary of the overall impacts that are expected as a result of the proposed changes, drawing from the output of the CAF2.
Cumulative Assessment Framework (CAF) Part 2 (Main report). Provides information on the cumulative and collective performance of the Airspace Change Proposals (ACPs) in the ScTMA cluster. Data for this document have been compiled from the detailed Full Options Appraisals completed by each of the sponsors and according to the agreed common methodologies set out in the Annexes (below).
CAF2 (Annex). Provides detailed descriptions of the agreed methodology and assumptions used by the sponsors in calculating the CO2 performance of their ACPs.