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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.



Supplemental Type Certificates (STCs)are issued to ratify approvals of major changes to aeronautical products or any change to the approved type design from applicants other than the Type Certificate Holder.

The UK left the European Union aviation system on 31 December 2020, and as such is no longer part of European Union aviation institutions, including the European Union Aviation Safety Agency (EASA).

EASA STCs valid up to this date are considered approved by the CAA and have not been published on the CAA website. Consult the STC holder for information on these design approvals.

Going forward, the CAA will issue its own STCs and will published them on this page.