---
title: "UAS.STS-02.030 Responsibilities of the UAS operator — Annex to Implementing Regulation (EU) 2019/947 — UAS OPERATIONS IN THE ‘OPEN’ AND ‘SPECIFIC’ CATEGORIES, UAS · Avioverse"
description: "In addition to the responsibilities defined in UAS.SPEC.050, the UAS operator shall:"
url: "https://avioverse.aero/regulations/easa/uas/annex-to-implementing-regulation-eu-2019-947-uas/appendices/uas-sts-02-030-responsibilities-of-the-uas-operator"
---

# UAS.STS-02.030 Responsibilities of the UAS operator

Annex to Implementing Regulation (EU) 2019/947 — UAS OPERATIONS IN THE ‘OPEN’ AND ‘SPECIFIC’ CATEGORIES · Regulations (EU) 2019/947 and 2019/945 · EAR revision 29 Jun 2026

IR Implementing rule

## UAS.STS-02.030 Responsibilities of the UAS operator

In addition to the responsibilities defined in UAS.SPEC.050, the UAS operator shall:

(1) develop an operations manual including the elements defined in Appendix 5;

(2) define the [operational volume](https://avioverse.aero/glossary/easa/operational-volume) and [ground risk buffer](https://avioverse.aero/glossary/easa/ground-risk-buffer) for the intended operations, including the [controlled ground area](https://avioverse.aero/glossary/easa/controlled-ground-area) covering the projections on the surface of the earth of both the volume and the buffer;

(3) ensure the adequacy of the contingency and emergency procedures through any of the following:

(a) dedicated flight tests;

(b) simulations, provided that the representativeness of the simulation means is appropriate for the intended purpose;

(4) develop an effective emergency response plan (ERP) suitable for the operation that includes at least:

(a) the plan to limit the escalating effects of the emergency situation;

(b) the conditions to alert the relevant authorities and organisations;

(c) the criteria to identify an emergency situation;

(d) clear delineation of the duties of the [remote pilot](https://avioverse.aero/glossary/easa/remote-pilot)(s) and any other personnel in charge of duties essential to the UAS operation;

(5) ensure that the level of performance for any externally provided service necessary for the safety of the flight is adequate for the intended operation;

(6) define the allocation of the roles and responsibilities between the operator and the external service provider(s), if applicable;

(7) upload updated information into the [geo-awareness](https://avioverse.aero/glossary/easa/geo-awareness), if the function is installed on the UAS, when required by the [UAS geographical zone](https://avioverse.aero/glossary/easa/uas-geographical-zone) for the intended location of the operation;

(8) ensure that, before starting the operation, all appropriate measures to reduce the risk of intrusion of [uninvolved persons](https://avioverse.aero/glossary/easa/uninvolved-persons) in the controlled ground area compliant with the minimum distance defined in point UAS.STS-02.020(2) have been taken and, when required, coordination with the appropriate authorities has been conducted;

(9) ensure that, before starting the operation, all persons present in the controlled ground area:

(a) have been informed of the risks of the operation;

(b) have been briefed and, if applicable, trained on the safety precautions and measures established by the UAS operator for their protection; and

(c) have explicitly agreed to participate in the operation;

(10) before starting the operation, if airspace observers are used:

(a) ensure the correct placement and number of airspace observers along the intended flight path;

(b) verify:

(i) that the visibility and the planned distance of the [airspace observer](https://avioverse.aero/glossary/easa/airspace-observer) are within acceptable limits as defined in the operations manual;

(ii) the absence of potential terrain obstructions for each airspace observer;

(iii) that there are no gaps between the zones covered by each of the airspace observers;

(iv) that the communication with each airspace observer is established and effective;

(v) that if means are used by the airspace observers to determine the position of the [unmanned aircraft](https://avioverse.aero/glossary/easa/unmanned-aircraft), those means are functioning and effective;

(c) ensure that the airspace observers have been briefed on the intended path of the unmanned aircraft and the associated timing;

(11) ensure that:

(a) the UAS is accompanied by the corresponding EU declaration of conformity, including the reference to class C6;

(b) the class C6 identification label is affixed to the unmanned aircraft.

IR — Regulations (EU) 2019/947 and 2019/945 · Regulation (EU) 2020/639 · UAS Easy Access Rules · EAR revision 29 Jun 2026

[All rules in APPENDICES](https://avioverse.aero/regulations/easa/uas/annex-to-implementing-regulation-eu-2019-947-uas/appendices)

Consolidated from the EASA Easy Access Rules (revision 29 Jun 2026, 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.