---
title: "GM1 Article 2(22) Definitions — Cover Regulation to Implementing Regulation (EU) 2019/947, UAS · Avioverse"
description: "DEFINITION OF ‘MAXIMUM TAKE-OFF MASS (MTOM)’ This MTOM is the maximum mass defined by the manufacturer or the builder, in the case of privately built…"
url: "https://avioverse.aero/regulations/easa/uas/cover-regulation-to-implementing-regulation-eu/powers-and-recitals/gm1-article-2-22"
---

# GM1 Article 2(22) Definitions

Cover Regulation to Implementing Regulation (EU) 2019/947 · Regulations (EU) 2019/947 and 2019/945 · EAR revision 29 Jun 2026

GM Guidance material

## GM1 Article 2(22) Definitions

DEFINITION OF ‘[MAXIMUM TAKE-OFF MASS](https://avioverse.aero/glossary/easa/maximum-take-off-mass) (MTOM)’

This MTOM is the maximum mass defined by the [manufacturer](https://avioverse.aero/glossary/easa/manufacturer) or the builder, in the case of [privately built UAS](https://avioverse.aero/glossary/easa/privately-built-uas), which ensures the controllability and mechanical resistance of the UA when flying within the operational limits.

The MTOM should include all the elements on board the UA:

(a) all the structural elements of the UA;

(b) the motors;

(c) the propellers, if installed;

(d) all the electronic equipment and antennas;

(e) the batteries and the maximum capacity of fuel, oil and all fluids; and

(f) the heaviest [payload](https://avioverse.aero/glossary/easa/payload) allowed by the manufacturer, including sensors and their ancillary equipment.

GM · GM1 Article 2(22) — Regulations (EU) 2019/947 and 2019/945 · ED Decision 2019/021/R · UAS Easy Access Rules · EAR revision 29 Jun 2026

[All rules in Powers and recitals](https://avioverse.aero/regulations/easa/uas/cover-regulation-to-implementing-regulation-eu/powers-and-recitals)

Consolidated from the EASA Easy Access Rules (revision 29 Jun 2026, 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.