---
title: "CS ADR-DSN.L.597 Apron service road marking — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Applicability: The limits of an apron service road, should be defined by apron service road markings."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings/cs-adr-dsn-l-597"
---

# CS ADR-DSN.L.597 Apron service road marking

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.597 Apron service road marking

(a) Applicability: The limits of an [apron service road](https://avioverse.aero/glossary/easa/apron-service-road), should be defined by apron service road markings.

(b) Location: Apron service road markings should define the areas intended for use by ground vehicles and other [aircraft](https://avioverse.aero/glossary/easa/aircraft) servicing equipment to provide safe separation from aircraft.

(c) Characteristics:

(1) Apron service road markings should be white.

(2) Apron service road markings should be continuous in length on the edges, continuous or broken in the middle, as appropriate, and at least 10 cm in width.

(3) When an apron service road crosses a [taxiway](https://avioverse.aero/glossary/easa/taxiway) or [aircraft stand taxilane](https://avioverse.aero/glossary/easa/aircraft-stand-taxilane), the apron service road edge [marking](https://avioverse.aero/glossary/easa/marking) should be laterally dashed along the crossing. The stripes should be 1.0 m in length, and their width should be equal to the width of the continuous part of the marking.

(d) Apron service road markings should be discontinued when they intersect with other markings on an [apron](https://avioverse.aero/glossary/easa/apron). The interrupted gap should be not more than 1 m on each side from the edge of the interested marking.

\[Issue: ADR-DSN/3]

IR · CS ADR-DSN.L.597 — Regulation (EU) No 139/2014 · ED Decision 2016/027/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.