---
title: "21L.A.81 Scope — Annex Ib, Initial Airworthiness · Avioverse"
description: "This Subpart establishes the procedure for natural or legal persons other than the holder of that type certificate for applying for the approval of major…"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-81"
---

# 21L.A.81 Scope

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

IR Implementing rule

## 21L.A.81 Scope

This Subpart establishes the procedure for natural or legal persons other than the holder of that type certificate for applying for the approval of major changes to type certificates, issued under Annex I ([Part 21](https://avioverse.aero/glossary/easa/part-21)) or this Annex, of products within the scope of point 21L.A.21, provided that the changed product is still within the scope of that point, and establishes the rights and obligations of the applicants for, and holders of, those certificates.

IR · 21L.A.81 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GM Guidance material

## GM1 21L.A.81 Scope

The term ‘changes to the type certificate’ is consistently used in Subparts D and E of [Part 21 Light](https://avioverse.aero/glossary/easa/part-21-light), as well as in the related AMC and GM. This term does not refer to changing the document that reflects the type certificate (TC) but to changing the elements of the TC as defined in point 21L.B.47(b). Therefore, the processes contained in Subparts D and E of Part 21 Light should be used for the approval of changes to the elements listed in point 21L.B.47(b).

GM · GM1 21L.A.81 — 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](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements)

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.