---
title: "GM26 Annex I Definitions — ANNEX I – Definitions, Air OPS · Avioverse"
description: "SLIPPERY WET RUNWAY (a) The surface friction characteristics of the runway are considered degraded when below the minimum standards."
url: "https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals/gm26-annex-i-definitions"
---

# GM26 Annex I Definitions

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

Official sources: [EASA Easy Access Rules (opens in a new tab)](https://www.easa.europa.eu/en/document-library/easy-access-rules/easy-access-rules-air-operations) · [EUR-Lex 2012/965 (opens in a new tab)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R0965)

GM Guidance material

## GM26 Annex I Definitions

SLIPPERY [WET RUNWAY](https://avioverse.aero/glossary/easa/wet-runway)

(a) The surface friction characteristics of the runway are considered degraded when below the minimum standards.

(b) A portion of runway in the order of 100 m long may be considered significant.

GM — Regulation (EU) No 965/2012 · ED Decision 2021/005/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 2 Nov 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.