---
title: "GM1 HPT-DSN.C.210 Helicopter air taxiways and helicopter air taxi-routes — Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes · Avioverse"
description: "The part of the helicopter air taxi-route that extends symmetrically on each side of the centre line from 0.5 times the largest overall width of the…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-c-helicopter-taxiways-and-taxi-routes/gm1-hpt-dsn-c-210"
---

# GM1 HPT-DSN.C.210 Helicopter air taxiways and helicopter air taxi-routes

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.C.210 Helicopter air taxiways and helicopter air taxi-routes

The part of the helicopter air taxi-route that extends symmetrically on each side of the centre line from 0.5 times the largest overall width of the helicopters it is intended to serve to the outermost limit of the helicopter air taxi-route is its [protection area](https://avioverse.aero/glossary/easa/protection-area).

GM · GM1 HPT-DSN.C.210 — Regulation (EU) No 139/2014 · ED Decision 2019/012/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER C — HELICOPTER TAXIWAYS AND TAXI-ROUTES](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-c-helicopter-taxiways-and-taxi-routes)

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.