---
title: "GM1 HPT-DSN.F.540 Final approach and take-off area designation marking — Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes · Avioverse"
description: "For a runway-type FATO, the numbers and the letter of the marking should have a white colour and should be in the form and proportion shown in Figure…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids/gm1-hpt-dsn-f-540"
---

# GM1 HPT-DSN.F.540 Final approach and take-off area designation marking

Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 HPT-DSN.F.540 Final approach and take-off area designation marking

For a [runway-type FATO](https://avioverse.aero/glossary/easa/runway-type-fato), the numbers and the letter of the [marking](https://avioverse.aero/glossary/easa/marking) should have a white colour and should be in the form and proportion shown in Figure GM1-F-2.

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

Figure GM1-F-2. Form and proportions of numbers and letter

GM · GM1 HPT-DSN.F.540 — Regulation (EU) No 139/2014 · ED Decision 2019/012/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER F — VISUAL AIDS](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids)

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.