---
title: "66.B.135 Procedure for the approval of multimedia-based training (MBT) courses — Part-66 · Avioverse"
description: "The competent authority, whenever it approves courses, including multimedia-based training (MBT) courses, which are delivered in a physical environment…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/section-b-procedures-for-competent-authorities/66-b-135"
---

# 66.B.135 Procedure for the approval of multimedia-based training (MBT) courses

Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IR Implementing rule

## 66.B.135 Procedure for the approval of multimedia-based training (MBT) courses

The competent authority, whenever it approves courses, including multimedia-based training (MBT) courses, which are delivered in a physical environment or virtual environment or both, shall verify that the [aircraft](https://avioverse.aero/glossary/easa/aircraft) basic training and the aircraft type training comply with Appendix I and Appendix III respectively.

The approval procedure shall include the principles and criteria of Appendix IX.

IR · 66.B.135 — Regulation (EU) No 1321/2014 · Regulation (EU) 2023/989 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — PROCEDURES FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/section-b-procedures-for-competent-authorities)

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.