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UK – EU Transition, and UK Civil Aviation Regulations

To access current UK civil aviation regulations, including AMC and GM, CAA regulatory documents, please use this link to UK Regulation. Please note, if you use information and guidance under the Headings below, the references to EU regulations or EU websites in our guidance will not be an accurate information or description of your obligations under UK law. These pages are undergoing reviews and updates.

The approval of rotorcraft in accordance with Part 21 is ratified by the issue of a Type Certificate (TC) or Restricted TC (RTC) by the CAA.

In general, there will be a Type Certificate Data Sheet (TCDS) associated with each TC or RTC issued.

The TCDS records the basis of certification, the designation of each approved variant and general information concerning the design.

The TCDS for Noise (TCDSN) records the basis of the environmental protection requirements and the certificated noise levels.

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).

TCDSs valid up to this date are considered approved by the CAA and have been published as they were released by EASA, including their identification number.

Going forward, some TCDSs will continue to refer to EU law and carry the EASA logo until they are required to be amended. Where references to EU law are made, they now relate to those laws as retained (and amended in UK domestic law) under the European Union (Withdrawal) Act 2018.

Once amended, a TCDS will have a new identification number to make readily intelligible the difference and published on this page.

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