---
title: "GM1 ADR-DSN.M.730 Stop bars — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "A stop bar is intended to be controlled either manually or automatically by air traffic services."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-m-visual-aids-for-navigation-lights/gm1-adr-dsn-m-730"
---

# GM1 ADR-DSN.M.730 Stop bars

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.M.730 Stop bars

(a) A stop bar is intended to be controlled either manually or automatically by [air traffic services](https://avioverse.aero/glossary/easa/air-traffic-services).

(b) [Runway](https://avioverse.aero/glossary/easa/runway) incursions may take place in all visibility or weather conditions. The provision of stop bars at runway-holding positions and their use at night and in visibility conditions greater than 550 m runway visual range can form part of effective runway incursion prevention measures.

(c) A pair of elevated lights should be added to each end of the stop bar where the in-pavement stop bar lights might be obscured from a pilot’s view, for example by snow or rain, or where a pilot may be required to stop the [aircraft](https://avioverse.aero/glossary/easa/aircraft) in a position so close to the lights that they are blocked from view by the structure of the aircraft.

(d) Where necessary, to enhance conspicuity of an existing stop bar, extra lights are installed uniformly.

(e) Where the additional lights specified in (c) above are provided, these lights should be located not less than 3 m from the [taxiway](https://avioverse.aero/glossary/easa/taxiway) edge.

(f) Where the additional lights specified in (c) above are provided, these lights should have the same characteristics as the lights in the stop bar but should be visible to approaching aircraft up to the stop bar position.

(g) High-intensity stop bars should only be used in case of an absolute necessity and following a specific study.

(h) Care is required in the design of the electrical system to ensure that all of the lights of a stop bar will not fail at the same time. Guidance on this issue is given in ICAO Doc 9157, [Aerodrome](https://avioverse.aero/glossary/easa/aerodrome) Design Manual, Part 5, Electrical Systems.

\[Issue: ADR-DSN/3]

GM · GM1 ADR-DSN.M.730 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER M — VISUAL AIDS FOR NAVIGATION (LIGHTS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-m-visual-aids-for-navigation-lights)

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.