---
title: "CS ADR-DSN.L.520 General — Colour and conspicuity — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Markings should be of a conspicuous colour and contrast with the surface on which they are laid."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings/cs-adr-dsn-l-520"
---

# CS ADR-DSN.L.520 General — Colour and conspicuity

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

IR Implementing rule

## CS ADR-DSN.L.520 General — Colour and conspicuity

Markings should be of a conspicuous colour and contrast with the surface on which they are laid.

(a) [Runway](https://avioverse.aero/glossary/easa/runway) markings should be white.

(b) Markings for taxiways, runway turn pads, and [aircraft](https://avioverse.aero/glossary/easa/aircraft) stands should be yellow.

(c) [Apron](https://avioverse.aero/glossary/easa/apron) safety lines should be of a conspicuous colour which should contrast with that used for [aircraft stand](https://avioverse.aero/glossary/easa/aircraft-stand) markings.

(d) When it is operationally necessary to apply temporary runway or [taxiway](https://avioverse.aero/glossary/easa/taxiway) markings, those markings should comply with the relevant CS.

IR · CS ADR-DSN.L.520 — Regulation (EU) No 139/2014 · ED Decision 2014/013/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.