---
title: "GM1 74. Obstacle — ANNEX I — Part-DEFINITIONS, ATM/ANS · Avioverse"
description: "MOBILE OBJECTS Mobile objects may be converted to fixed items in obstacle database taking into account its mobility boundaries."
url: "https://avioverse.aero/regulations/easa/atm-ans/part-definitions/general/gm1-74-obstacle"
---

# GM1 74. Obstacle

ANNEX I — Part-DEFINITIONS · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

GM Guidance material

## GM1 74. Obstacle

MOBILE OBJECTS

Mobile objects may be converted to fixed items in obstacle database taking into account its mobility boundaries.

GM — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

[All rules in General provisions](https://avioverse.aero/regulations/easa/atm-ans/part-definitions/general)

Consolidated from the EASA Easy Access Rules (revision 12 Mar 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.