---
title: "CS 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: "Applicability: A FATO designation marking should be provided on a runway-type FATO at a heliport where it is necessary to designate the FATO to the pilot."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids/cs-hpt-dsn-f-540"
---

# CS 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

IR Implementing rule

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

(a) Applicability: A FATO designation [marking](https://avioverse.aero/glossary/easa/marking) should be provided on a [runway-type FATO](https://avioverse.aero/glossary/easa/runway-type-fato) at a [heliport](https://avioverse.aero/glossary/easa/heliport) where it is necessary to designate the FATO to the pilot.

(b) Location: Where provided, a FATO designation marking should be located at the beginning of the runway-type FATO (see Figure F-2).

(c) Characteristics: A FATO designation marking should consist of a two-digit number. The two-digit number should be the whole number nearest the one-tenth of the magnetic North when viewed from the direction of approach. When the above rule would give a single digit number, it should be preceded by a zero (see Figure F-2).

IR · CS 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.