---
title: "GM5 Annex I Definitions — ANNEX I – Definitions, Air OPS · Avioverse"
description: "HELICOPTER EMERGENCY MEDICAL SERVICES (HEMS) FLIGHT (a) A HEMS flight (or more commonly referred to as HEMS mission) normally starts and ends at the HEMS…"
url: "https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals/gm5-annex-i-definitions"
---

# GM5 Annex I Definitions

ANNEX I – Definitions · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026

GM Guidance material

## GM5 Annex I Definitions

[HELICOPTER](https://avioverse.aero/glossary/easa/helicopter) EMERGENCY MEDICAL SERVICES (HEMS) FLIGHT

(a) A [HEMS flight](https://avioverse.aero/glossary/easa/hems-flight) (or more commonly referred to as HEMS mission) normally starts and ends at the [HEMS operating base](https://avioverse.aero/glossary/easa/hems-operating-base) following tasking by the ‘HEMS dispatch centre’. Tasking can also occur when airborne, or on the ground at locations other than the HEMS operating base.

(b) The following elements should be regarded as integral parts of the HEMS mission:

(1) flights to and from the [HEMS operating site](https://avioverse.aero/glossary/easa/hems-operating-site) when initiated by the HEMS dispatch centre;

(2) flights to and from an aerodrome/[operating site](https://avioverse.aero/glossary/easa/operating-site) for the delivery or pick-up of medical supplies and/or persons required for completion of the HEMS mission; and

(3) flights to and from an aerodrome/operating site for refuelling required for completion of the HEMS mission.

GM — Regulation (EU) No 965/2012 · ED Decision 2016/022/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

[All rules in Powers and recitals](https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals)

Consolidated from the EASA Easy Access Rules (revision 27 Mar 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.