---
title: "CS HPT-DSN.B.100 – CS HPT-DSN.B.130: CHAPTER B — HELICOPTER OPERATING AREAS (Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes) — rule index · Avioverse"
description: "CS HPT-DSN.B.100 – CS HPT-DSN.B.130, Regulation (EU) No 139/2014. CS HPT-DSN.B.100 Final approach and take-off areas (FATOs) (a) Applicability:"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas"
---

# CHAPTER B — HELICOPTER OPERATING AREAS

Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1 · Aerodromes · Regulation (EU) No 139/2014 · CS HPT-DSN.B.100 – CS HPT-DSN.B.130

On this page

1. ## [CS HPT-DSN.B.100 Final approach and take-off areas (FATOs)](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/cs-hpt-dsn-b-100)

   Applicability: A heliport should be provided with at least one final approach and take-off area (FATO).

2. ## [GM1 HPT-DSN.B.100 Final approach and take-off areas (FATOs)](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/gm1-hpt-dsn-b-100)

   General: A FATO may not be necessary to be provided at and aerodrome, where the runway is used for the purposes of final approach and take-off of…

3. ## [CS HPT-DSN.B.110 Helicopter clearways](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/cs-hpt-dsn-b-110)

   Applicability: When provided, a helicopter clearway should be located beyond the end of the FATO.

4. ## [GM1 HPT-DSN.B.110 Helicopter clearways](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/gm1-hpt-dsn-b-110)

   General: A helicopter clearway would need to be considered when the heliport is intended to be used by helicopters operating in performance class 1.

5. ## [CS HPT-DSN.B.120 Touchdown and lift-off areas (TLOFs)](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/cs-hpt-dsn-b-120)

   General: At least one TLOF should be provided at a heliport.

6. ## [GM1 HPT-DSN.B.120 Touchdown and lift-off areas (TLOFs)](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/gm1-hpt-dsn-b-120)

   Additional TLOFs may be located within runway-type FATOs.

7. ## [CS HPT-DSN.B.130 Safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/cs-hpt-dsn-b-130)

   General: A FATO should be surrounded by a safety area which need not be solid.

8. ## [GM1 HPT-DSN.B.130 Safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-b-helicopter-operating-areas/gm1-hpt-dsn-b-130)

   When only a single approach and take-off climb surface is provided, the need for specific protected side slopes should be determined by a safety…

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.

Share [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Faerodromes%2Fcs-hpt-dsn%2Fchapter-b-helicopter-operating-areas)[X](https://twitter.com/intent/tweet?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Faerodromes%2Fcs-hpt-dsn%2Fchapter-b-helicopter-operating-areas\&text=CHAPTER%20B%20%E2%80%94%20HELICOPTER%20OPERATING%20AREAS%20%E2%80%94%20Aerodromes)