---
title: "21.A.90B Standard changes — Annex I, Initial Airworthiness · Avioverse"
description: "Standard changes are changes to a type-certificate: in relation to:"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-i/section-a-technical-requirements/21-a-90b"
---

# 21.A.90B Standard changes

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

IR Implementing rule

## 21.A.90B Standard changes

(a) Standard changes are changes to a type-certificate:

1\. in relation to:

(i) aeroplanes with a maximum take-off mass (MTOM) of 5 700kg or less;

(ii) rotorcraft with a MTOM of 3 175kg or less;

(iii) sailplanes, powered sailplanes, balloons and airships, as defined in ELA1 or ELA2;

(iv) [VTOL-capable aircraft](https://avioverse.aero/glossary/easa/vtol-capable-aircraft) with a MTOM of 5 700kg or less;

2\. that follow design data included in the certification specifications issued by the Agency, containing acceptable methods, techniques and practices for carrying out and identifying standard, including the associated instructions for continued airworthiness; and

3\. that are not in changes conflict with TC holders data.

(b) Points 21.A.91 to 21.A.109 are not applicable to standard changes.

IR · 21.A.90B — Regulation (EU) No 748/2012 · Regulation (EU) 2024/1108 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

GM Guidance material

## GM 21.A.90B Standard changes — Certification Specifications

CS-STAN contains the certification specifications referred to in 21.A.90B(a)2. Guidance on the implementation of Standard Changes and Standard Repairs can be found in AMC M.A.801 of the AMC to Part-M.

GM · GM 21.A.90B — Regulation (EU) No 748/2012 · ED Decision 2015/016/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-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.