---
title: "Significant — EASA Definition · Avioverse"
description: "MED.A.010, Regulation (EU) No 1178/2011: ‘significant’ means a degree of a medical condition, the effect of which would prevent the safe exercise of the…"
url: "https://avioverse.aero/glossary/easa/significant"
---

# significant

EASA defines “significant” in 2 regulations, worded for each regulation's scope. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘significant’ means a degree of a medical condition, the effect of which would prevent the safe exercise of the privileges of the licence or of the cabin crew safety duties;

MED.A.010 · Aircrew · Regulation (EU) No 1178/2011 · Easy Access Rules, 25 Nov 2025 revision · [Read MED.A.010](https://avioverse.aero/regulations/easa/aircrew/part-med/subpart-a#med-a-010)

> ‘Significant’ means a degree of a medical condition, the effect of which would prevent the safe exercise of the privileges of the licence.

ATCO.MED.A.010 · Air Traffic Controllers' Licensing and Certification · Regulation (EU) 2015/340 · Easy Access Rules, 14 Jun 2024 revision · [Read ATCO.MED.A.010](https://avioverse.aero/regulations/easa/atco/part-atco-med-medical-requirements-for-air-traffic/subpart-a#atco-med-a-010)

## Defined in the same article

- [accredited medical conclusion](https://avioverse.aero/glossary/easa/accredited-medical-conclusion)
- [aero-medical assessment](https://avioverse.aero/glossary/easa/aero-medical-assessment)
- [aero-medical examination](https://avioverse.aero/glossary/easa/aero-medical-examination)
- [applicant](https://avioverse.aero/glossary/easa/applicant)
- [colour safe](https://avioverse.aero/glossary/easa/colour-safe)
- [Eye specialist](https://avioverse.aero/glossary/easa/eye-specialist)
- [helicopter emergency medical services (HEMS) operation](https://avioverse.aero/glossary/easa/helicopter-emergency-medical-services-operation)
- [investigation](https://avioverse.aero/glossary/easa/investigation)