Skip to content

A gradual release of Avioverse begins in October 2026. Request early access →

21L.A.101 Scope

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

IRImplementing rule

21L.A.101Scope

This Subpart establishes:

(a)the procedure for declaring the compliance of a change to the design of an aircraft which was subject to a declaration made in accordance with Subpart C of this Annex;

(b)the rights and obligations of the declarant making a declaration of compliance of the change referred to in point (a); and

(c)provisions regarding the standard changes that do not require a declaration of design compliance.

IR · 21L.A.101 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GMGuidance material

GM1 21L.A.101Scope

Show the text

The term ‘change to the design of an aircraft which was subject to a declaration’ is used in Part 21 Light Subpart F, as well as in the related AMC and GM, to refer to any changes to the elements of the aircraft design data as defined in point 21L.A.46. Therefore, a declaration of design compliance should be required for any changes to the aircraft design data defined in point 21L.A.46.

GM · GM1 21L.A.101 — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · 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.

Ask Metis about 21L.A.101 →

Metis opens with Avioverse in October 2026 · request early access.