---
title: "ORO.TC.105 Conditions for assignment to duties — Part-ORO · Avioverse"
description: "Technical crew members involved in commercial air transport HEMS, VEMS, HHO or NVIS operations shall only be assigned duties provided they:"
url: "https://avioverse.aero/regulations/easa/air-ops/part-oro/subpart-tc/oro-tc-105"
---

# ORO.TC.105 Conditions for assignment to duties

ANNEX III (Part-ORO) · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026

Official sources: [EASA Easy Access Rules (opens in a new tab)](https://www.easa.europa.eu/en/document-library/easy-access-rules/easy-access-rules-air-operations) · [EUR-Lex 2012/965 (opens in a new tab)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R0965)

IR Implementing rule

## ORO.TC.105 Conditions for assignment to duties

(a) Technical crew members involved in commercial air transport HEMS, VEMS, HHO or NVIS operations shall only be assigned duties provided they:

(1) are at least 18 years of age;

(2) are physically and mentally fit to safely discharge their assigned duties and responsibilities;

(3) have completed all applicable training required by this Subpart to perform their assigned duties;

(4) have been checked and found to be [proficient](https://avioverse.aero/glossary/easa/proficient) to perform all their assigned duties in accordance with the procedures specified in the operations manual.

(b) Before assigning to duties technical crew members who are self-employed and/or working on a freelance or part-time basis, the operator shall verify that all applicable requirements of this Subpart are complied with, taking into account all services rendered by the [technical crew member](https://avioverse.aero/glossary/easa/technical-crew-member) to other operator(s) to determine in particular:

(1) the total number of [aircraft](https://avioverse.aero/glossary/easa/aircraft) types and variants operated;

(2) the applicable flight and [duty](https://avioverse.aero/glossary/easa/duty) time limitations and rest requirements.

IR · ORO.TC.105 — Regulation (EU) No 965/2012 · Regulation (EU) 2024/1111 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

AMC Acceptable means of compliance

## AMC1 ORO.TC.105 Conditions for assignment to duties

GENERAL

(a) The [technical crew member](https://avioverse.aero/glossary/easa/technical-crew-member) in HEMS, VEMS, HHO or NVIS operations should undergo an initial medical examination or assessment and, if applicable, a reassessment before [undertaking](https://avioverse.aero/glossary/easa/undertaking) duties.

(b) Any medical assessment or re-assessment should be carried out according to best aero-medical practice by a medical practitioner who has sufficiently detailed knowledge of the applicant’s medical history.

(c) The operator should maintain a record of medical fitness for each technical crew member.

(d) Technical crew members should:

(1) be in good health;

(2) be free from any physical or mental illness that might lead to incapacitation or inability to perform crew duties;

(3) have normal cardio-respiratory function;

(4) have normal central nervous system;

(5) have adequate visual acuity 6/9 with or without glasses;

(6) have adequate hearing;

(7) have normal function of ear, nose and throat; and

(8) be colour safe for [night](https://avioverse.aero/glossary/easa/night) operations.

(e) Validity of medical assessments and reassessments

(1) The medical assessment or reassessment of points (d)(1) to (d)(4) and (d)(6) and (d)(7) should have a validity period of:

(i) 60 months, until the technical crew member reaches the age of 40;

(ii) 24 months, for technical crew members aged above 40.

(2) The medical assessment or reassessment of point (d)(5) should have a validity period of:

(i) the duration defined in (e)(1)(i) and (e)(1)(ii), until the technical crew member reaches the age of 50;

(ii) 12 months, for technical crew members aged above 50.

(3) The medical assessment of point (d)(8) does not need to be repeated.

(f) A class 2 medical certificate issued in accordance with Commission Regulation (EU) No 1178/2011¹ meets the requirements of ORO.TC.105(a)(2).

(g) A LAPL medical certificate issued in accordance with Commission Regulation (EU) No 1178/2011, complemented with timely medical reassessments of point (d)(5), meets the requirements of ORO.TC.105(a)(2).

¹ Commission Regulation (EU) No 1178/2011 of 3 November 2011 laying down technical requirements and administrative procedures related to civil aviation aircrew pursuant to Regulation (EC) No 216/2008 of the European Parliament and of the Council (OJ L 311, 25.11.2011, p. 1) (https\://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32011R1178).

AMC · AMC1 ORO.TC.105 — Regulation (EU) No 965/2012 · ED Decision 2025/010/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

[All rules in SUBPART TC: TECHNICAL CREW IN HEMS, HHO OR NVIS OPERATIONS](https://avioverse.aero/regulations/easa/air-ops/part-oro/subpart-tc)

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 2 Nov 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.