---
title: "GM1 HPT-DSN.F.530 Final approach and take-off area perimeter marking or markers — Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes · Avioverse"
description: "Where a TLOF is coincident with a FATO, the TLOF marking can be used."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids/gm1-hpt-dsn-f-530"
---

# GM1 HPT-DSN.F.530 Final approach and take-off area perimeter marking or markers

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.530 Final approach and take-off area perimeter marking or markers

(a) Where a TLOF is coincident with a FATO, the TLOF [marking](https://avioverse.aero/glossary/easa/marking) can be used.

(b) FATO perimeter markers should be of a single colour, either orange or red, or the two contrasting colours of orange and white or, alternatively, red and white should be used except where such colours would merge with the background. A FATO perimeter [marker](https://avioverse.aero/glossary/easa/marker) should have dimensional characteristics as shown in Figure GM1-F-1.

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

Figure GM1-F-1. [Runway-type FATO](https://avioverse.aero/glossary/easa/runway-type-fato) edge marker

GM · GM1 HPT-DSN.F.530 — 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.