---
title: "ATCO.C.025 Temporary OJTI authorisation — ANNEX I – PART ATCO – REQUIREMENTS FOR THE LICENSING OF AIR TRAFFIC CONTROLLERS, ATCO · Avioverse"
description: "When compliance with the requirements provided for in ATCO.C.010(b)(2) is not possible, the competent authority may grant temporary OJTI authorisation…"
url: "https://avioverse.aero/regulations/easa/atco/part-atco-requirements-for-the-licensing-of-air/subpart-c/atco-c-025"
---

# ATCO.C.025 Temporary OJTI authorisation

ANNEX I – PART ATCO – REQUIREMENTS FOR THE LICENSING OF AIR TRAFFIC CONTROLLERS · Regulation (EU) 2015/340 · EAR revision 14 Jun 2024

IR Implementing rule

## ATCO.C.025 Temporary OJTI authorisation

(a) When compliance with the requirements provided for in ATCO.C.010(b)(2) is not possible, the competent authority may grant temporary OJTI authorisation based on a safety analysis presented by the air navigation service provider.

(b) The temporary OJTI authorisation referred to in point (a) may be issued to holders of a valid OJTI endorsement issued in accordance with ATCO.C.015.

(c) The temporary OJTI authorisation referred to in point (a) shall be limited to the instruction necessary to cover exceptional situations and its validity shall not exceed one year or the expiration of the validity of the OJTI endorsement issued in accordance with ATCO.C.015, whichever occurs sooner.

IR · ATCO.C.025 — Regulation (EU) 2015/340 · ATCO Easy Access Rules · EAR revision 14 Jun 2024

AMC Acceptable means of compliance

## AMC1 ATCO.C.025(a) Temporary OJTI authorisation

SAFETY ANALYSIS

The safety analysis should specify the reasons for which the relevant [unit endorsement](https://avioverse.aero/glossary/easa/unit-endorsement) requirement provided for in ATCO.C.010(b)(2) cannot be met and how the equivalent level of safety will be ensured by other means.

AMC · AMC1 ATCO.C.025(a) — Regulation (EU) 2015/340 · ED Decision 2015/010/R · ATCO Easy Access Rules · EAR revision 14 Jun 2024

GM Guidance material

## GM1 ATCO.C.025(a) Temporary OJTI authorisation

EXCEPTIONAL SITUATIONS

Exceptional situations for which it may be considered not to be possible to comply with ATCO.C.010(b)(2) for the purpose of the valid [unit endorsement](https://avioverse.aero/glossary/easa/unit-endorsement) experience, and, therefore, a temporary OJTI authorisation may be granted, are the following:

(a) establishment of a new ATC unit or new [sector](https://avioverse.aero/glossary/easa/sector) for the air navigation service provider;

(b) the continuity of the existing service is endangered due to the non-availability of personnel as a consequence of a change in the air navigation service provider at the ATC unit;

(c) new [rating](https://avioverse.aero/glossary/easa/rating) or [rating endorsement](https://avioverse.aero/glossary/easa/rating-endorsement) put into operation at an ATC unit;

(d) reopening of a temporary ATC unit.

GM · GM1 ATCO.C.025(a) — Regulation (EU) 2015/340 · ED Decision 2015/010/R · ATCO Easy Access Rules · EAR revision 14 Jun 2024

[All rules in SUBPART C – REQUIREMENTS FOR INSTRUCTORS AND ASSESSORS](https://avioverse.aero/regulations/easa/atco/part-atco-requirements-for-the-licensing-of-air/subpart-c)

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.