---
title: "CS ADR-DSN.E.360 Slopes on aprons — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Slopes on an apron, including those on an aircraft stand taxilane, should be sufficient to prevent accumulation of water on the surface of the apron but…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-e-aprons/cs-adr-dsn-e-360"
---

# CS ADR-DSN.E.360 Slopes on aprons

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

IR Implementing rule

## CS ADR-DSN.E.360 Slopes on aprons

(a) Slopes on an [apron](https://avioverse.aero/glossary/easa/apron), including those on an [aircraft stand taxilane](https://avioverse.aero/glossary/easa/aircraft-stand-taxilane), should be sufficient to prevent accumulation of water on the surface of the apron but should be kept to the minimum required to facilitate effective drainage.

(b) On an [aircraft stand](https://avioverse.aero/glossary/easa/aircraft-stand) the maximum slope should not exceed 1 % in any direction.

\[Issue: ADR-DSN/3]

IR · CS ADR-DSN.E.360 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER E — APRONS](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-e-aprons)

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.