---
title: "GM1 ADR-DSN.K.500 Signalling lamp — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "When selecting the green light, use should be made of the restricted boundary of green as specified in GM1 ADR-DSN.U.930(a)."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-k-visual-aids-for-navigation-indicators/gm1-adr-dsn-k-500"
---

# GM1 ADR-DSN.K.500 Signalling lamp

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.K.500 Signalling lamp

When selecting the green light, use should be made of the restricted boundary of green as specified in GM1 ADR-DSN.U.930(a).

GM · GM1 ADR-DSN.K.500 — Regulation (EU) No 139/2014 · ED Decision 2014/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER K — VISUAL AIDS FOR NAVIGATION (INDICATORS AND SIGNALLING DEVICES)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-k-visual-aids-for-navigation-indicators)

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.