---
title: "GM1 ADR-DSN.N.785 Information signs — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "When an installation of information sign on the left-hand side is not possible, e.g."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-n-visual-aids-for-navigation-signs/gm1-adr-dsn-n-785"
---

# GM1 ADR-DSN.N.785 Information signs

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.N.785 Information signs

(a) When an installation of information [sign](https://avioverse.aero/glossary/easa/sign) on the left-hand side is not possible, e.g. due to infrastructural or operational restrictions, an installation on the right-hand side of the [taxiway](https://avioverse.aero/glossary/easa/taxiway) in accordance with the specifications given in Table N-1 may also be acceptable when a safety assessment indicates that it would not adversely affect the safety of operations of aeroplanes.

(b) At a ‘T’ intersection, information signs may be located in the direction of the taxiway centre line to the opposite side of the crossing taxiway when a safety assessment indicates that guidance could be assured under all intended operating conditions and that it would not adversely affect the safety of operations of aeroplanes.

\[Issue: ADR-DSN/3]

GM · GM1 ADR-DSN.N.785 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER N — VISUAL AIDS FOR NAVIGATION (SIGNS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-n-visual-aids-for-navigation-signs)

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.