CEN/TC 471/WG 1 - Unmanned Aircraft Systems

This document specifies requirements, test methods and pass criteria for the:
—   implemented static geocage function used to prevent the UA from breaching the horizontal and vertical limits of the planned operational volume;
—   information to be provided in the manufacturer’s instructions describing this function, its limits and the required size of the contingency volume after accounting the errors, reaction time and corrections.
This document does not cover the dynamic geocage function.
In addition, this document only covers the termination of the flight of the UA by the geo-caging function when breaching the OV. It does not address the compliance to the technical requirements imposed by Regulation (EU) 2019/945 on the Flight Termination System which are fully addressed by standard EN 4709-006, including the automatic triggering of the termination performed independently from the geo-caging function.

This document provides technical specification and verification methods to support compliance with Commission Delegated Regulation (EU) 2019/945 of 12 March 2019 on unmanned aircraft systems and on third-country operators of unmanned aircraft systems.
This part provides requirements, test methods and pass criteria for the means to terminate flight (flight termination) for unmanned aircraft systems, in particular addressing:
— safety related aspects of the architecture;
— descent performance;
— means to reduce the effects of impact on ground; and
— manufacturer’s instructions.
Even if security, including IT security, may be useful from an operational point of view, it falls outside the scope of this document.
An activation of the means to terminate the flight by a visual observer is also outside the scope of this document.
This document provides voluntary means of demonstrating compliance with the requirements laid out in Regulation (EU) 2019/945.
Additional hazards that occur from the characteristics of the payload are excluded and are, conversely, under the responsibility of the UAS manufacturer and UAS operator.

This document provides technical specification and specifies verification methods to support compliance with Commission Delegated Regulation (EU) 2019/945 of 12 March 2019 amended by Commission Delegated Regulation (EU) 2020/1058 of 27 April 2020 on unmanned aircraft systems (UAS) and on third-country operators of unmanned aircraft systems.
This includes compliance with product requirements for UAS intended to be operated under a standard scenario in the ‘specific’ category (class C5 and class C6 UAS).
This document is only applicable for unmanned aircraft (UA) with energy sources based on electro-chemical technologies.
Additional hazards that occur from the characteristics of the payload are excluded and are under the responsibility of the manufacturer and operator.
The present document covers requirements expressed in Annex, Part 16 requirements (1), (3), (4) and (6) and Part 17 requirements (1), (3), (6) and (7) of the Regulation 2020/1058.

This document will provide means of compliance to cover lighting related requirements for Parts 2 to 4 of the Annex to the Commission Delegated Regulation (EU) 2019/945 on unmanned aircraft and on third country UAS operators.
The purpose is to be able to verify that an UA is equipped with lights:
—   for the controllability of the UA (the effectiveness of those lights is not part of the lighting requirement but is covered by the controllability requirement; therefore, its verification is covered by the clause addressing the controllability requirement of EN 4709 001:2026);
—   that ensure conspicuity of the unmanned aircraft at night (see 3.45 of ISO 21384 4:2025), the design of the light shall allow a person on the ground to distinguish a UA from a manned aircraft.
This document addresses:
—   definition of types, technical requirements, and technical parameters of UA lights (e.g. position of lights for different UA categories, intensity for different operation modes);
—   definition of purpose, test procedures, requirements, and compliance rules to evaluate UA lights

This document provides means to demonstrate compliance with:
—   the “geo-awareness” requirements specified in Part 2 points (13), Part 3 points (15) and Part 4 points (10) of the Commission Delegated Regulation (EU) 2019/945; and to
—   the requirement on the smooth interaction of the optional geofencing function with the flight control system of the UA set by Part 2 points (14), Part 3 points (16) and Part 4 points (11) on the optional geofencing function.
This document specifies the minimum performance required from this “geo-awareness” function, without prescribing its design and implementation as far as possible.
Compliance with this document is recommended as one means of assuring that the geo-awareness function will perform its intended sub-functions satisfactorily under all conditions normally encountered in routine aeronautical operation.
Compliance to the “smooth interaction” requirement is, for a large part, addressed by 6.3 on safe controllability of EN 4709-001:2026. This document will therefore refer to it to a large extend.
NOTE   In this document, we will use “function” to designate the objects of this specification, and “equipment” to identify the entity implementing this function in whatever form.

This document provides means of compliance with the “Direct Remote Identification” requirements set
in Regulation (EU) 2019/945 on Unmanned Aircraft Systems.
“Direct remote identification” means a system that ensures the local broadcast of information about a
UA in operation.
More specifically, this document addresses drone’s capability to be identified during the whole duration
of the flight, in real time and with no specific connectivity or ground infrastructure link, by existing
mobile devices when within the broadcasting range. Such functionality, based on an open and
documented transmission protocol (described in this document) contributes to address security threats
and to support drones’ operators’ obligations with respect to citizens’ fundamental rights to privacy
and protection of personal data. It can be used by law enforcement people, critical infrastructure
managers, and public to get an instantaneous information on the drone flying around, providing various
information such as UA serial number, UA navigation data and operational status, UAS Operator
registration number and position as defined in the Delegated Regulation (EU) 2019/945.
Since Regulation (EU) 2019/945 requires DRI information to be broadcasted using an “open and
documented protocol”, this document does not define technological measures to protect the
confidentiality and integrity of the data broadcasted.

This document provides means of compliance with Parts 1 to 6 of Commission delegated (EU) .../... of XXX on making available on the market of unmanned aircraft intended for use in the ‘open’ category and on third-country UAS operators proposed in the Opinion 01/2018.
This includes compliance with product requirements for all UAS authorized to operate in the ‘open’ category (class C0, C1, C2, C3 and C4 UAS) and the electronic identification system.
This document does not cover "Specific" or "Certified" category of UAS.
Compliance with this document assists in complying with CE marking technical requirements and covers, but is not limited to:
I.   Physical and mechanical properties;
II.   Flammability;
III.   Electrical properties;
IV.   Functional Safety.
This European Standard is only applicable for UA with energy sources based on electro-chemical technologies.
Additional hazards that occur from the characteristics of the payload are excluded and are under the responsibility of the manufacturer and operator.