# 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.805: Identification of critical parts

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

In addition to the requirement of point 21.A.804, each manufacturer of a part to be fitted on a type-certificated product which has been identified as a critical part shall permanently and legibly mark that part with a part number and a serial number.

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Source: https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+q/division/21.a.805 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+q/division-21.a.805
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.