---
title: "21L.A.171 Scope — Annex Ib, Initial Airworthiness · Avioverse"
description: "This Subpart establishes: the procedure for declaring the design capability by natural and legal persons who design products under this Section;"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/21l-a-171"
---

# 21L.A.171 Scope

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

IR Implementing rule

## 21L.A.171 Scope

This Subpart establishes:

(a) the procedure for declaring the design capability by natural and legal persons who design products under this Section; and

(b) the rights and obligations of the persons making declarations of design capability referred to in point (a).

IR · 21L.A.171 — 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](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.