---
title: "CS ADR-DSN.B.145 Surface of runway shoulders — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "The surface of a runway shoulder should be prepared or constructed so as to resist erosion and prevent the ingestion of the surface material by aeroplane…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-b-runways/cs-adr-dsn-b-145"
---

# CS ADR-DSN.B.145 Surface of runway shoulders

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.B.145 Surface of runway shoulders

(a) The surface of a [runway](https://avioverse.aero/glossary/easa/runway) [shoulder](https://avioverse.aero/glossary/easa/shoulder) should be prepared or constructed so as to resist erosion and prevent the ingestion of the surface material by [aeroplane](https://avioverse.aero/glossary/easa/aeroplane) engines.

(b) Runway shoulders for code letter F aeroplanes should be paved to a minimum overall width of runway and shoulder of not less than 60 m.

\[Issue: ADR-DSN/4]

IR · CS ADR-DSN.B.145 — Regulation (EU) No 139/2014 · ED Decision 2017/021/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER B — RUNWAYS](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-b-runways)

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.