---
title: "GM1 38h (c) Runway surface condition descriptors — ANNEX I — Definitions, Aerodromes · Avioverse"
description: "‘Freezing’ refers to the freezing point of water (0 degree Celsius)."
url: "https://avioverse.aero/regulations/easa/aerodromes/definitions/powers-and-recitals/gm1-38h-c-runway-surface-condition-descriptors"
---

# GM1 38h (c) Runway surface condition descriptors

ANNEX I — Definitions · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 38h (c) Runway surface condition descriptors

‘Freezing’ refers to the freezing point of water (0 degree Celsius). Under certain conditions, [frost](https://avioverse.aero/glossary/easa/frost) can cause the surface to become very slippery and it is then reported appropriately as downgraded RWYCC.

GM — Regulation (EU) No 139/2014 · ED Decision 2021/003/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

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

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.