---
title: "ATCO.MED.A.010 Definitions — ANNEX IV – PART ATCO.MED – MEDICAL REQUIREMENTS FOR AIR TRAFFIC CONTROLLERS, ATCO · Avioverse"
description: "For the purpose of this Part, the following definitions apply:"
url: "https://avioverse.aero/regulations/easa/atco/part-atco-med-medical-requirements-for-air-traffic/subpart-a/atco-med-a-010"
---

# ATCO.MED.A.010 Definitions

ANNEX IV – PART ATCO.MED – MEDICAL REQUIREMENTS FOR AIR TRAFFIC CONTROLLERS · Regulation (EU) 2015/340 · EAR revision 14 Jun 2024

IR Implementing rule

## ATCO.MED.A.010 Definitions

For the purpose of this Part, the following definitions apply:

(a) ‘[Accredited medical conclusion](https://avioverse.aero/glossary/easa/accredited-medical-conclusion)’ means the conclusion reached by one or more medical experts acceptable to the [licensing authority](https://avioverse.aero/glossary/easa/licensing-authority), on the basis of objective and non-discriminatory criteria, for the purposes of the case concerned, in consultation with operational experts or other experts as necessary and including an operational risk [assessment](https://avioverse.aero/glossary/easa/assessment);

(b) ‘[Aero-medical assessment](https://avioverse.aero/glossary/easa/aero-medical-assessment)’ means the conclusion on the medical fitness of an applicant based on the evaluation of the applicant's medical history and aero-medical examinations as required in this Part and further examinations and medical tests as necessary;

(c) ‘[Aero-medical examination](https://avioverse.aero/glossary/easa/aero-medical-examination)’ means inspection, palpation, percussion, auscultation or any other means of [investigation](https://avioverse.aero/glossary/easa/investigation) especially for determining the medical fitness to exercise the privileges of the [licence](https://avioverse.aero/glossary/easa/licence);

(d) ‘[Eye specialist](https://avioverse.aero/glossary/easa/eye-specialist)’ means an ophthalmologist or a vision care specialist qualified in optometry and trained to recognise pathological conditions;

(e) ‘Investigation’ means the assessment of a suspected pathological condition of an applicant by means of examinations and tests to verify the presence or absence of a medical condition;

(f) ‘Licensing authority’ means the competent authority of the Member State that issued the licence, or to which a person applies for the issue of a licence, or, when a person has not yet applied for the issue of a licence, the competent authority in accordance with this Part;

(g) ‘[Limitation](https://avioverse.aero/glossary/easa/limitation)’ means a condition placed on the medical certificate that shall be complied with whilst exercising the privileges of the licence;

(h) ‘[Refractive error](https://avioverse.aero/glossary/easa/refractive-error)’ means the deviation from emmetropia measured in dioptres in the most ametropic meridian, measured by standard methods;

(i) ‘[Significant](https://avioverse.aero/glossary/easa/significant)’ means a degree of a medical condition, the effect of which would prevent the safe exercise of the privileges of the licence.

IR · ATCO.MED.A.010 — Regulation (EU) 2015/340 · ATCO Easy Access Rules · EAR revision 14 Jun 2024

[All rules in SUBPART A – GENERAL REQUIREMENTS](https://avioverse.aero/regulations/easa/atco/part-atco-med-medical-requirements-for-air-traffic/subpart-a)

Consolidated from the EASA Easy Access Rules (revision 14 Jun 2024, 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.