---
title: "GM1 ADR-DSN.G.400 Clearance distances on a de-icing/anti-icing pad — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "The separation criteria should take into account the need for individual de-icing/anti-icing pads to provide sufficient manoeuvring area around the…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-g-de-icing-anti-icing-facilities/gm1-adr-dsn-g-400"
---

# GM1 ADR-DSN.G.400 Clearance distances on a de-icing/anti-icing pad

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 ADR-DSN.G.400 Clearance distances on a de-icing/anti-icing pad

(a) The separation criteria should take into account the need for individual de-icing/anti-icing pads to provide sufficient [manoeuvring area](https://avioverse.aero/glossary/easa/manoeuvring-area) around the [aircraft](https://avioverse.aero/glossary/easa/aircraft) to allow simultaneous treatment by two or more mobile de-icing/anti-icing vehicles and sufficient non-overlapping space for a vehicle safety zone between adjacent de-icing pads and for other de-icing/anti-icing pads.

(b) The minimum clearance distance of 3.8 m is necessary for the [movement](https://avioverse.aero/glossary/easa/movement) of de-icing/anti-icing vehicles round the aircraft.

(c) Where the [de-icing/anti-icing facility](https://avioverse.aero/glossary/easa/de-icinganti-icing-facility) is located in a non-[movement area](https://avioverse.aero/glossary/easa/movement-area), the minimum clearance distance can be reduced.

\[Issue: ADR-DSN/6]

GM · GM1 ADR-DSN.G.400 — Regulation (EU) No 139/2014 · ED Decision 2022/006/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER G — DE-ICING/ANTI-ICING FACILITIES](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-g-de-icing-anti-icing-facilities)

Consolidated from the EASA Easy Access Rules (revision 13 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.