Consultation on Electronic Conspicuity – Initial Technical Concept of Operations

Closes 6 Oct 2025

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Call for Evidence on the EC Mandate

The UK Government has asked the CAA to begin work on exploring how an EC mandate may be introduced in the UK, separate from this Concept of Operations. The questions below seek early stakeholder input on the potential challenges, and opportunities of introducing a potential EC mandate for lower airspace users. This work would not apply to larger aircraft over 5.7 tonnes, as these are, in most cases, already required to carry and utilise an ADS-B Out capable Mode S transponder in accordance with Commission Regulation (EU) No. 1207/2011. 

19. In principle, do you support or oppose the introduction of a potential EC Mandate for lower airspace users in the UK?
20. What operational, financial, or technological barriers, if any, do you foresee with a potential EC Mandate? Please detail your answer.
21. What opportunities, if any, do you foresee with a potential EC Mandate? Please detail your answer.
22. What data, studies, or evidence are you aware of, that should be considered in the development of a potential EC Mandate?
23. What other views, if any, on the potential introduction of an EC Mandate should the CAA consider at this early stage?