# 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 (c): Each manufacturer of such a product, part or appliance shall:

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

1..upon the initial transfer by it of the ownership of such a product, part or appliance; or
2..upon application for the original issue of an aircraft certificate of airworthiness; or
3..upon application for the original issue of an airworthiness release document for an engine, a propeller, a part or appliance,
present a current statement of conformity, for validation by the CAA.

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Source: https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+f/division/21.a.130/division/c (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+f/division-21.a.130/division-c
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.