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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.

CAP 797, the Flight Information Service Officer Manual, is a manual of air traffic services for use by flight information service officers and contains procedures, instructions and information pertaining to both aerodrome and area operations; it may also be of general interest to others associated with civil aviation.

Edition 4 Amendment 1 becomes effective on 24 March 2022.

Supplementary Instructions (SIs) to CAP 797 are periodically issued ahead of routine amendments to introduce an entirely new subject, a radical change to existing instructions or to re-emphasise an existing instruction. CAP 797 should be read in conjunction with these Supplementary Instructions.

Review comment:
Effective 24 March 2022
Version date:
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