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OFFICIAL - Public
CAT Commercial Air Transport
CG Centre of Gravity
CofA Certificate of Airworthiness
CofC Certificate of Conformance
ConOps Concept of Operations
COR Containment Requirements
COT Containment Requirements (Tether)
COTS Commercial Off-The-Shelf
CPL Commercial Pilot Licence
Crit Criterion
CRM Crew Resource Management
CS Certification Specification
CSP Communication Service Provider
CTR Control Zone
CU Command Unit
D
DA Danger Area (Airspace)
DA Design Approval (Airworthiness)
DAA Detect and Avoid
DAL Design Assurance Level
DfT Department for Transport
DG Dangerous Goods
DMARES Drone and Model Aircraft Registration and Education Service
DOA Design Organisation Approval
DSCO Digitalisation of the Specific Category Operations
DiSCO Digitalisation of the Specific Category Operations (project overview)
E
EASA European Union Aviation Safety Agency
EC Electronic Conspicuity
EC European Commission
CAP
Last updated: 26 February 2025
UK FIS
available by LoA with Leeds Bradford Airport (LBA) and Doncaster Sheffield Airport (DSA) and a dedicated
conspicuity code has been allocated.
Last updated: 05 May 2022
Electronic conspicuity and drones – While we welcome the ideas put forward and
acknowledge the issues raised in your IBP, it is important to recognise that no decisions
have been made by the CAA or Government on NERL’s future role in drone traffic
management.
Last updated: 17 November 2021
I know that safety and utility is enhanced by having the
greatest volume of airspace available; and that it can be enabled further by ever greater
employment of technology-based deconfliction, principally electronic conspicuity – where
I’m delighted that our recently launched rebate scheme for EC devices has already had
considerable uptake, with immediate safety benefits which I hope will quickly grow
incrementally.
8
Then, of course, there’s withdrawal from the EU and EASA.
Last updated: 18 October 2021
These included:
• the importance of ensuring that GA is fully and appropriately covered in the
Government’s Aviation Strategy;
• the scope and aims of the Airspace Inquiry launched by the All-Party
Parliamentary Group (APPG) on GA;
• the CAA’s work in developing a longer-term strategy for airspace integration
- including consideration of EASA and industry developments under this
topic and related areas, such as electronic conspicuity;
• performance-based oversight (PBO) of aerodromes and the development
of pathfinders to support its further development over time;
• CAA use of civil sanctions; and
• how to encourage the next generation of GA participants (including through
increased diversity).
32.
Last updated: 17 June 2021
OFFICIAL - Public
Chapter 8
Conclusion
8.1 CAA’s work on the C2 link forms part of the Future Air Traffic Management and
Air Navigation Services program that also includes aspects such as detect and
avoid (DAA), electronic conspicuity (EC), and UAS Traffic Management (UTM).
8.2 The CAA policy for C2 Links recognises that the C2 Link requirements for each
SORA will vary each application depending on factors such as the SAIL, how the
DAA and EC implemented, where and when the UA is intended to fly.
8.3 The C2 link can be directly provided by the UAS operator, equally may rely on
services bought in from a variety of different telecoms providers.
Last updated: 28 September 2025
First published April 2021
The latest version of this document is available in electronic format at: www.caa.co.uk/CAP2125
CAP 2125 Contents
April 2021 Page 3
Contents
Contents ................................................................................................................................. 3
Summary ................................................................................................................................. 5
Chapter 1 ................................................................................................................................ 6
On airspace and infrastructure ............................................................................................. 6
Why does the CAA always blame the pilot following an infringement rather than the airspace
design or lack of ATC service?
Last updated: 28 April 2021
First published 2023
Second edition
Enquiries regarding the content of this publication should be addressed to: uasregulatoryreview@caa.co.uk
The latest version of this document is available in electronic format at: www.caa.co.uk
mailto:uasregulatoryreview@caa.co.uk
http://www.caa.co.uk/
CAP 2569: Call for Input – Review of UK UAS Regulation Foreword
August 2023 Page 3
Foreword
Kevin Woolsey
Co-Head of
General Aviation
and RPAS Unit
Civil Aviation
Authority
Over the last decade, drones and other Unmanned Aircraft
Systems (UAS) have become an established part of our
airspace.
Last updated: 09 August 2023
First published July 2026
Enquiries regarding the content of this publication should be addressed to:
nicholas.ratcliffe@caa.co.uk
The latest version of this document is available in electronic format at: www.caa.co.uk/CAP3261
mailto:nicholas.ratcliffe@caa.co.uk
https://www.caa.co.uk/CAP3261
Contents
Contents 5
1.
Last updated: 21 July 2026
Thorough pre-flight planning, electronic navigation
aids, Electronic Conspicuity systems, being on a useful
frequency, listening to and passing information to others, and
making use of ATC when it’s available are all ways of building
as comprehensive a picture as you can.
Last updated: 26 February 2025
