---
title: "Ground risk buffer — EASA Definition · Avioverse"
description: "Article 2, Regulations (EU) 2019/947 and 2019/945: ‘ground risk buffer’ is an area over the surface of the earth, which surrounds the operational volume…"
url: "https://avioverse.aero/glossary/easa/ground-risk-buffer"
---

# ground risk buffer

EASA defines “ground risk buffer” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘ground risk buffer’ is an area over the surface of the earth, which surrounds the operational volume and that is specified in order to minimise the risk to third parties on the surface in the event of the unmanned aircraft leaving the operational volume.

Article 2 · Unmanned Aircraft Systems · Regulations (EU) 2019/947 and 2019/945 · Easy Access Rules, 29 Jun 2026 revision · [Read Article 2](https://avioverse.aero/regulations/easa/uas/cover-regulation-to-implementing-regulation-eu/powers-and-recitals#article-2)

## Defined in the same article

- [airspace observer](https://avioverse.aero/glossary/easa/airspace-observer)
- [assemblies of people](https://avioverse.aero/glossary/easa/assemblies-of-people)
- [autonomous operation](https://avioverse.aero/glossary/easa/autonomous-operation)
- [beyond visual line of sight operation](https://avioverse.aero/glossary/easa/beyond-visual-line-of-sight-operation)
- [C2 link](https://avioverse.aero/glossary/easa/c2-link)
- [contingency area](https://avioverse.aero/glossary/easa/contingency-area)
- [contingency volume](https://avioverse.aero/glossary/easa/contingency-volume)
- [control and monitoring unit (CMU)](https://avioverse.aero/glossary/easa/control-and-monitoring-unit)