---
title: "CS ADR-DSN.C.210 Runway end safety areas (RESA) — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "The safety objective of the runway end safety area (RESA) is to minimise risks to aircraft and their occupants when an aeroplane overruns or undershoots…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-210"
---

# CS ADR-DSN.C.210 Runway end safety areas (RESA)

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.C.210 Runway end safety areas (RESA)

(a) The safety objective of the [runway end safety area (RESA)](https://avioverse.aero/glossary/easa/runway-end-safety-area) is to minimise risks to [aircraft](https://avioverse.aero/glossary/easa/aircraft) and their occupants when an [aeroplane](https://avioverse.aero/glossary/easa/aeroplane) overruns or undershoots a [runway](https://avioverse.aero/glossary/easa/runway).

(b) A runway end [safety area](https://avioverse.aero/glossary/easa/safety-area) should be provided at each end of a [runway strip](https://avioverse.aero/glossary/easa/runway-strip) where:

(1) the code number is 3 or 4; and

(2) the code number is 1 or 2 and the runway is an instrument one.

(c) Where practicable, a runway end safety area should be provided at each end of a runway strip where the code number is 1 or 2 and the runway is a non-instrument one.

\[Issue: ADR-DSN/3]

IR · CS ADR-DSN.C.210 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER C — RUNWAY END SAFETY AREA](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area)

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.