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CAT.OP.MPA.100 Use of air traffic services

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

IRImplementing rule

CAT.OP.MPA.100Use of air traffic services

(a)The operator shall ensure that:

(1)air traffic services (ATS) appropriate to the airspace and the applicable rules of the air are used for all flights whenever available;

(2)in-flight operational instructions involving a change to the ATS flight plan, when practicable, are coordinated with the appropriate ATS unit before transmission to an aircraft.

(b)Notwithstanding (a), the use of ATS is not required unless mandated by air space requirements for:

(1)operations under VFR by day of other-than complex motor-powered aeroplanes;

(2)helicopters with an MCTOM of 3 175 kg or less operated by day and over routes navigated by reference to visual landmarks; or

(3)local helicopter operations (LHOs), provided that search and rescue service arrangements can be maintained.

IR · CAT.OP.MPA.100 — Regulation (EU) No 965/2012 · Regulation (EU) 2021/1296 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

GMGuidance material

GM1 CAT.OP.MPA.100(a)(2)Use of air traffic services

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IN-FLIGHT OPERATIONAL INSTRUCTIONS When coordination with an appropriate air traffic service (ATS) unit has not been possible, in-flight operational instructions do not relieve a commander of the responsibility for obtaining an appropriate clearance from an ATS unit, if applicable, before making a change in flight plan.

GM · GM1 CAT.OP.MPA.100(a)(2) — Regulation (EU) No 965/2012 · ED Decision 2014/015/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

All rules in SUBPART B: OPERATING PROCEDURES

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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