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21L.A.26 Type design

Annex Ib · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

IRImplementing rule

21L.A.26Type design

The applicant for a type certificate shall define the product type design to enable its unique and unambiguous identification, consisting of:

(a)drawings and specifications and a listing of those drawings and specifications that are necessary to define the configuration and the design features of the product;

(b)information on the materials and processes used;

(c)information on the methods of manufacture and assembly;

(d)any airworthiness limitations;

(e)the environmental compatibility requirements; and

(f)any other data allowing by comparison the determination of the airworthiness, and, if relevant, the environmental compatibility of later products of the same type.

IR · 21L.A.26 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

All rules in SECTION A - TECHNICAL REQUIREMENTS

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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