# Commission Regulation (EU) No 748/2012 of 3 August 2012 laying down implementing rules for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations (recast) (Text with EEA relevance), Division 21.A.181: Duration and continued validity

Extent: E+W+S+N.I.

(a)An airworthiness certificate shall be issued for an unlimited duration. It shall remain valid subject to:
1..the aircraft continuing to comply with the applicable type design and continued airworthiness requirements; and
2..the aircraft remaining on the same register; and
3..the type-certificate or restricted type-certificate under which it is issued not being previously invalidated under point 21.A.51;
4..the certificate having not been revoked by the CAA under point 21.B.65 or surrendered by the certificate holder.
(b)Upon surrender or revocation, the certificate shall be returned to the CAA.

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Source: https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+h/division/21.a.181 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+h/division-21.a.181
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.