---
title: "GM1 38 (b) Runway condition code — ANNEX I — Definitions, Aerodromes · Avioverse"
description: "The purpose of the runway condition code (RWYCC) is to permit an operational aeroplane performance calculation by the flight crew."
url: "https://avioverse.aero/regulations/easa/aerodromes/definitions/powers-and-recitals/gm1-38-b-runway-condition-code"
---

# GM1 38 (b) Runway condition code

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

GM Guidance material

## GM1 38 (b) Runway condition code

The purpose of the [runway condition code (RWYCC)](https://avioverse.aero/glossary/easa/runway-condition-code) is to permit an operational [aeroplane](https://avioverse.aero/glossary/easa/aeroplane) performance calculation by the flight crew.

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.