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21L.A.5 Collaboration between design and production

Regulation (EU) 2022/1358

The holder of a type certificate, supplemental type certificate, approval of a change to type certificate or approval of a repair design, the declarant of a declaration of design compliance, and the organisation or the natural or legal person producing products or parts of that specific design shall collaborate so as to ensure that the product or part are in conformity to that design and to ensure the continued airworthiness of the product or part.