---
title: "ATM overall severity score — EASA Definition · Avioverse"
description: "Article 2, Regulation (EU) No 376/2014: ‘ATM overall severity score’ means the ATM ground severity score and ATM airborne severity score combined into…"
url: "https://avioverse.aero/glossary/easa/atm-overall-severity-score"
---

# ATM overall severity score

EASA defines “ATM overall severity score” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘ATM overall severity score’ means the ATM ground severity score and ATM airborne severity score combined into one single score;

Article 2 · Occurrence Reporting · Regulation (EU) No 376/2014 · Easy Access Rules, 27 Sep 2023 revision · [Read Article 2](https://avioverse.aero/regulations/easa/occurrence-reporting/commission-implementing-regulation-eu-2021-2082/cover-regulation#article-2)

## Defined in the same article

- [ARMS-ERC methodology](https://avioverse.aero/glossary/easa/arms-erc-methodology)
- [ATM](https://avioverse.aero/glossary/easa/atm)
- [ATM airborne severity score](https://avioverse.aero/glossary/easa/atm-airborne-severity-score)
- [ATM ground severity score](https://avioverse.aero/glossary/easa/atm-ground-severity-score)
- [Eurocontrol](https://avioverse.aero/glossary/easa/eurocontrol)
- [RAT methodology](https://avioverse.aero/glossary/easa/rat-methodology)