IRImplementing rule
ARO.GEN.300Oversight
(a)The competent authority shall verify:
(1)compliance with the requirements applicable to organisations or type of operations prior to the issue of a certificate, approval or authorisation, as applicable;
(2)continued compliance with the applicable requirements of organisations it has certified, specialised operations it has authorised and organisations from which it received a declaration;
(3)continued compliance with the applicable requirements of non-commercial operators of other-than complex motor-powered aircraft; and
(4)implementation of appropriate safety measures mandated by the competent authority as defined in ARO.GEN.135(c) and (d).
(b)This verification shall:
(1)be supported by documentation specifically intended to provide personnel responsible for safety oversight with guidance to perform their functions;
(2)provide the persons and organisations concerned with the results of safety oversight activity;
(3)be based on audits and inspections, including ramp and unannounced inspections; and
(4)provide the competent authority with the evidence needed in case further action is required, including the measures foreseen by ARO.GEN.350 and ARO.GEN.355.
(c)The scope of oversight defined in (a) and (b) shall take into account the results of past oversight activities and the safety priorities.
(d)Without prejudice to the competences of the Member States and to their obligations as set out in ARO.RAMP, the scope of the oversight of activities performed in the territory of a Member State by persons or organisations established or residing in another Member State shall be determined on the basis of the safety priorities, as well as of past oversight activities.
(e)Where the activity of a person or organisation involves more than one Member State or the Agency, the competent authority responsible for the oversight under (a) may agree to have oversight tasks performed by the competent authority(ies) of the Member State(s) where the activity takes place or by the Agency. Any person or organisation subject to such agreement shall be informed of its existence and of its scope.
(f)The competent authority shall collect and process any information deemed useful for oversight, including for ramp and unannounced inspections.
(g)With regard to the certification and oversight of the organisation’s compliance with point ORO.GEN.200A, in addition to complying with points (a) to (f) of this point, the competent authority shall review any approval granted under point IS.I.OR.200(e) of Annex II to Implementing Regulation (EU) 2023/203 following the applicable oversight audit cycle and whenever changes are implemented in the scope of work of the organisation.
IR · ARO.GEN.300 — Regulation (EU) No 965/2012 · Regulation (EU) 2025/2293 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026