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When electronic conspicuity devices (for example ADS-B) have advanced
to a state of development that they are considered acceptable and
interoperable by meeting EASA safety requirements, Farnborough
undertake to implement the surveillance of such devices as another
standard means for VFR traffic to gain access to Class E + conspicuity
airspace.
Last updated: 15 April 2025
First published 2021
Enquiries regarding the content of this publication should be addressed to:
airspace.modernisation@caa.co.uk
The latest version of this document is available in electronic format at: www.caa.co.uk/CAP2175
mailto:airspace.modernisation@caa.co.uk
CAP 2175 Contents
June 2021 Page 3
Contents
Contents 3
Background 4
AMS Review Engagement Plan 6
Requirements Gathering Sessions 7
Co-creation Workshops 7
AMS Review Panel 7
Public consultation 7
Stakeholder Engagement Process 8
Requirements Gathering Sessions 11
2040 Vision: Co-Creation Workshops 16
AMS Review Panel 18
Ongoing Communications Plan 20
Annex 1:
AMS Review – Stakeholder Resource Requirement and Key Areas of Interest 22
CAP 2175 Background
June 2021 Page 4
Background
1.
Last updated: 07 June 2021
Aside from the lack of full electronic conspicuity, which was
seen as a technical barrier, improvements would require a cultural shift, which was
why efforts from the UKAB were focused on stakeholder engagement.
Last updated: 20 April 2021
There are also some e�ective and relatively inexpensive electronic systems now
Six ways to minimise an Airprox
5
1
4
For more Information visit www.airproxboard.org.uk
EYES OUT / LOOK OUT / LISTEN OUT
FIVE
SECONDS
TO IMPACT!
Last updated: 01 June 2017
First published 2025
Enquiries regarding the content of this publication should be addressed to: charges@caa.co.uk
The latest version of this document is available in electronic format at: www.caa.co.uk/CAP3089
mailto:charges@caa.co.uk
CAP3089
March 2025 Page 3
OFFICIAL - Public.
Last updated: 12 March 2025
Electronic conspicuity: discussions were continuing with DfT about further
incremental steps on an EC strategy, including options that improved safety,
enabled more innovators to use UK airspace and reduced the need airspace
segregation.
Last updated: 02 November 2021
The various
methods of electronic conspicuity combined with radar sources means there
are a number of options to consider to fully inform the use of the UK’s
airspace.
Last updated: 16 July 2020
You should make use of UK FIS where available
(consider a Traffic Service), maintain a good
lookout and use an electronic conspicuity device.
Last updated: 26 March 2024
Abbreviation
Item
AAIB
Air Accident Investigation Board
AIAA
Area of Intense Aerial Activity
AIRPROX Board
Air Proximity Board (UK) – (Air miss Investigation)
ALARP
As Low As Reasonably Practicable
AOO
Area Of Operation
AMC
Acceptable Means of Compliance
ANO
Air Navigation Order
ANSP
Air Navigation Service Provider
ATC
Air Traffic Control
ATS
Air Traffic Services
C2
Command and Control
CAA
Civil Aviation Authority
CAP
Civil Aviation Publication
CG
Centre of Gravity
CTR
Control Traffic Region
CU
Command Unit
EC
Electronic Conspicuity
EMI
Electromagnetic Interference
ERA
Emergency Response Action
ERP
Emergency Response Plan
EU
European Union
FIS
Flight Information Service
FOD
Foreign Object Debris
FMS
Flight Management System
FRZ
Flight Restriction Zone
FW
Fixed Wing
GA
General Aviation
GNSS
Global Navigation Satellite System
HIRTA
High Intensity Radio Transmission Area
HMI
Human Machine Interface
Last updated: 11 September 2025
Enquiries regarding the content of this publication should be addressed to:
Airspace & ATS Policy, Airspace and ATM Aerodromes, Safety and Airspace Regulation Group
The latest version of this document is available in electronic format at www.caa.co.uk/cap2093
http://www.caa.co.uk/cap2093
Safety and Airspace Regulation Group
Contents
Executive summary ............................................................................................................. 4
1 Introduction ................................................................................................................... 5
2 System Description ....................................................................................................... 7
3 Impact Analysis Methodology ........................................................................................ 9
4 Impact Analysis ......................................................................
Last updated: 17 March 2021