---
title: "21.B.70 Certification specifications — Annex I, Initial Airworthiness · Avioverse"
description: "The Agency, in accordance with Article 76(3) of Regulation (EU) 2018/1139, shall issue certification specifications and other detailed specifications…"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-i/section-b-procedures-for-competent-authorities/21-b-70"
---

# 21.B.70 Certification specifications

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

IR Implementing rule

## 21.B.70 Certification specifications

The Agency, in accordance with [Article](https://avioverse.aero/glossary/easa/article) 76(3) of Regulation (EU) 2018/1139, shall issue certification specifications and other detailed specifications, including certification specifications for airworthiness and operational suitability data, which competent authorities, organisations and personnel may use to demonstrate compliance of products, parts, appliances, UAS, CMUs and CMU components with the relevant essential requirements set out in Annexes II, IV, V and IX to that Regulation. Such specifications shall be sufficiently detailed and specific to indicate to applicants the conditions under which certificates shall be issued, amended or supplemented.

IR · 21.B.70 — Regulation (EU) No 748/2012 · Regulation (EU) 2025/1065 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

[All rules in SECTION B — PROCEDURES FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-i/section-b-procedures-for-competent-authorities)

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.