---
title: "CS ADR-DSN.L.555 Taxiway centre line marking — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Applicability: Taxiway centre line marking should be provided on a taxiway, de-icing/anti-icing facility and apron in such a way as to provide continuous…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings/cs-adr-dsn-l-555"
---

# CS ADR-DSN.L.555 Taxiway centre line 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.555 Taxiway centre line marking

(a) Applicability:

(1) [Taxiway](https://avioverse.aero/glossary/easa/taxiway) centre line [marking](https://avioverse.aero/glossary/easa/marking) should be provided on a taxiway, [de-icing/anti-icing facility](https://avioverse.aero/glossary/easa/de-icinganti-icing-facility) and [apron](https://avioverse.aero/glossary/easa/apron) in such a way as to provide continuous guidance between the [runway](https://avioverse.aero/glossary/easa/runway) centre line and [aircraft](https://avioverse.aero/glossary/easa/aircraft) stands.

(2) Taxiway centre line marking should be provided on a runway when the runway is part of a standard taxi-route and where the taxiway centre line is not coincident with the runway centre line.

(b) Characteristics:

(1) On a straight section of a taxiway, the taxiway centre line marking should be located along the taxiway centre line.

(2) On a taxiway curve, the marking should continue from the straight portion of the taxiway at a constant distance from the outside edge of the curve.

(3) At an intersection of a taxiway with a runway, where the taxiway serves as an exit from the runway, the taxiway centre line marking should be curved into the runway centre line marking as shown in Figure L-5. The taxiway centre line marking should be extended parallel to the runway centre line marking for a distance of at least 60 m beyond the point of tangency where the code number is 3 or 4, and for a distance of at least 30 m where the code number is 1 or 2.

(4) Where taxiway centre line marking is provided in accordance with (a)(2) above, the marking should be located on the centre line of the designated taxiway.

(5) A taxiway centre line marking should be at least 15 cm in width and continuous in length except where it intersects with a [runway-holding position](https://avioverse.aero/glossary/easa/runway-holding-position) marking or an [intermediate holding position](https://avioverse.aero/glossary/easa/intermediate-holding-position) marking as shown in Figure L-5. Taxiway markings (shown with basic runway markings).

\[Figure or form omitted from this preview — available in the Avioverse workspace library.]

Figure L-5. Taxiway markings (shown with basic runway markings)

\[Issue: ADR-DSN/3]

\[Issue: ADR-DSN/6]

IR · CS ADR-DSN.L.555 — Regulation (EU) No 139/2014 · ED Decision 2022/006/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.