---
title: "145.A.30(h) Base maintenance certifying staff qualification — Part-145 · Avioverse"
description: "Any organisation maintaining aircraft, except where stated otherwise in point (j), shall:"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-145/section-a-technical-and-organisation-requirements/145-a-30-h"
---

# 145.A.30(h) Base maintenance certifying staff qualification

Annex II (Part-145) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IR Implementing rule

## 145.A.30(h) Base maintenance certifying staff qualification

Any [organisation](https://avioverse.aero/glossary/easa/organisation) maintaining [aircraft](https://avioverse.aero/glossary/easa/aircraft), except where stated otherwise in point (j), shall:

1\. in the case of base [maintenance](https://avioverse.aero/glossary/easa/maintenance) of [complex motor-powered aircraft](https://avioverse.aero/glossary/easa/complex-motor-powered-aircraft), have appropriate aircraft-type-rated [certifying staff](https://avioverse.aero/glossary/easa/certifying-staff), qualified as category C in accordance with Annex III (Part-66) and point 145.A.35. In addition, the organisation shall have sufficient aircraft-type-rated staff qualified as category B1 and B2, as appropriate, in accordance with Annex III (Part-66) and point 145.A.35 to support the category C certifying staff.

(i) Category B1 and B2 support staff shall ensure that all relevant tasks or inspections have been carried out to the required standard before the category C certifying staff issues the certificate of release to service.

(ii) The organisation shall maintain a register of any such category B1 and B2 support staff.

(iii) The category C certifying staff shall ensure that compliance with point (i) has been met and that all work required by the customer has been accomplished during the particular base maintenance check or work package, and shall also assess the impact of any work not carried out, with a view to either requiring its accomplishment or agreeing with the operator to defer such work to another specified check or time limit.

2\. in the case of base maintenance of aircraft other than complex motor-powered aircraft, have one of the following:

(i) appropriate aircraft-rated certifying staff, qualified as category B1, B2, B2L, B3 and L, as appropriate, in accordance with Annex III (Part-66) and point 145.A.35;

(ii) appropriate aircraft-rated certifying staff, qualified in category C or L5, as applicable, and assisted by support staff, as set out in point 145.A.35(a)(1).

IR · 145.A.30(h) — Regulation (EU) No 1321/2014 · Regulation (EU) 2018/1142 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC1 145.A.30(h) Personnel requirements

In accordance with points 145.A.30(h) and 145.A.35, the qualification requirements (basic licence, [aircraft](https://avioverse.aero/glossary/easa/aircraft) ratings, recent experience and recurrent training) are identical for [certifying staff](https://avioverse.aero/glossary/easa/certifying-staff) and for support staff. The only difference is that support staff cannot hold certification privileges when performing this role since during base [maintenance](https://avioverse.aero/glossary/easa/maintenance), the release to service will be issued by category C certifying staff.

Nevertheless, the [organisation](https://avioverse.aero/glossary/easa/organisation) may use as support staff (for base maintenance) persons who already hold certification privileges for line maintenance.

AMC · AMC1 145.A.30(h) — Regulation (EU) No 1321/2014 · ED Decision 2022/011/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION A — TECHNICAL AND ORGANISATION REQUIREMENTS](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-145/section-a-technical-and-organisation-requirements)

Consolidated from the EASA Easy Access Rules (revision 2 Sep 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.