---
title: "21.A.2 Undertaking by a person other than the applicant for, or holder of, a certificate — Annex I, Initial Airworthiness · Avioverse"
description: "The actions and obligations required to be undertaken by the applicant for, or holder of, a certificate for a product, part, appliance, control and…"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-i/section-a-technical-requirements/21-a-2"
---

# 21.A.2 Undertaking by a person other than the applicant for, or holder of, a certificate

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

IR Implementing rule

## 21.A.2 Undertaking by a person other than the applicant for, or holder of, a certificate

The actions and obligations required to be undertaken by the applicant for, or holder of, a certificate for a product, part, appliance, [control and monitoring unit (CMU)](https://avioverse.aero/glossary/easa/control-and-monitoring-unit) or CMU component under this Section may be undertaken on their behalf by any other natural or legal person, provided the applicant for, or holder of, that certificate can show that they have made an agreement with the other person to ensure that the certificate holder’s obligations are and will be properly discharged.

IR · 21.A.2 — Regulation (EU) No 748/2012 · Regulation (EU) 2024/1108 · 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-i/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.