ED Decision 2023/013/R
A type certificate (TC) that is issued under Subpart B of Annex I (Part 21) has the same validity as a TC that is issued under Subpart B of Annex Ib (Part 21 Light). However, the eligibility for design organisations is different (e.g. declared design organisations using Subpart J of Annex Ib are permitted to apply for a TC), and also the means of verifying compliance is different.
In addition, the production organisation requirements are also different, and organisations are permitted to become declared production organisations using Subpart G of Annex Ib (Part 21 Light) and produce products and parts within the scope of point 21L.A.21.
As per point 21L.A.23(b), an organisation that holds a design organisation approval (DOA) issued under Subpart J of Annex I (Part 21) meets the eligibility criteria of Subpart B of Annex Ib (Part 21 Light). Such organisations may use the privileges that are granted under that approval (as per points (2), (5) and (8) of point 21.A.263(c) of Annex I (Part 21)) and further described in points 21L.A.69(a) and 21L.A.209(a) of Annex Ib (Part 21 Light).
Furthermore, an organisation that holds a production organisation approval (POA) issued under Subpart G of Annex I (Part 21) is permitted to use that approval to release products and parts within the scope of Subpart B of Annex Ib (Part 21 Light), and use the privileges that are granted under that approval (as per point 21.A.163(b) of Annex I (Part 21)) and further described under points 21L.A.143(c)(1)(ii) and 21L.A.163(c)(1)(i)(C) of Annex Ib (Part 21 Light).
GM1 21L.A.21 clarifies that Part 21 and Part 21 Light type certificates share equal validity, but design and production organisation eligibility, compliance verification, and privileges differ, with specific cross-refer-
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