---
title: "GM1 ADR-DSN.L.540 Aiming point marking — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "For runways with widths of 30 m, the width of the rectangular stripes of the aiming point marking and the lateral spacing between the inner sides of the…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings/gm1-adr-dsn-l-540"
---

# GM1 ADR-DSN.L.540 Aiming point marking

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.L.540 Aiming point marking

For runways with widths of 30 m, the width of the rectangular stripes of the aiming point [marking](https://avioverse.aero/glossary/easa/marking) and the lateral spacing between the inner sides of the stripes may be adjusted in proportion to the available [runway](https://avioverse.aero/glossary/easa/runway) width to avoid overlapping of the aiming point marking with the runway side stripe marking.

\[Issue: ADR-DSN/4]

GM · GM1 ADR-DSN.L.540 — Regulation (EU) No 139/2014 · ED Decision 2017/021/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER L — VISUAL AIDS FOR NAVIGATION (MARKINGS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings)

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.