ISO 23629-8:2023

UAS traffic management (UTM) — Part 8: Remote identification

This document defines the generic concept and common framework of unmanned aircraft system (UAS) remote identification, which is mainly used to electronically identify an in-flight unmanned aircraft (UA). This document sets the minimum performance standards for direct remote identification. This document does not cover requirements for modules installed in UA or requirements for network remote identification. This document does not cover the identity of other information technology (IT) entities, such as the station of the remote pilot, the workstation of the fleet manager or any other connected entity.

Gestion du trafic des aéronefs sans pilote (UTM) — Partie 8: Identification à distance

General Information

• Status: Published
• Publication Date: 24-Apr-2023
• ICS: 49.020 - Aircraft and space vehicles in general
• Technical Committee: ISO/TC 20/SC 16 - Unmanned aircraft systems
• Drafting Committee: ISO/TC 20/SC 16/WG 4 - UAS Traffic Management
• Current Stage: 6060 - International Standard published
• Start Date: 25-Apr-2023
• Due Date: 30-Jun-2023
• Completion Date: 25-Apr-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 23629-8
First edition
2023-04
UAS traffic management (UTM) —
Part 8:
Remote identification
Gestion du trafic des aéronefs sans pilote (UTM) —
Partie 8: Identification à distance
Reference number
ISO 23629-8:2023(E)
© ISO 2023

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ISO 23629-8:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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ISO 23629-8:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 UAS Remote identification overview . 2
4.1 General . 2
4.2 Classification of UAS remote identification . 2
5 Direct remote identification . .3
5.1 General . 3
5.2 Direct remote identification message . 4
5.3 Transmission method and transport protocols . 5
5.4 Transmission performance . 5
Annex A (informative) Comparison of UAS remote identification related standards .6
Bibliography . 7
iii
© ISO 2023 – All rights reserved

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ISO 23629-8:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at  www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,
Subcommittee SC 16, Unmanned aircraft systems.
A list of all parts in the ISO 23629 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
  © ISO 2023 – All rights reserved

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ISO 23629-8:2023(E)
Introduction
Remote identification is the ability of a UAS in flight to provide identification information that can be
received by other parties. The objective of this document is to increase UAS operator accountability
by removing anonymity. While network remote identification is important for UTM and safety, direct
remote identification improves operator accountability by removing anonymity, and provides local
situational awareness including supporting potential law enforcement actions.
Some organizations have already created specific performance requirements of remote identification
functions, for example, existing documents and ongoing discussion in ASTM International, ASD-STAN
and EUROCAE (Figure 1). ISO/TC20/SC16 recognise that these models share a lot of common aspects
and concepts. Annex A shows the gap between this document and standards from other organizations.
NOTE See ASTM F3411-22 and prEN 4709-002.
Figure 1 — Document structure of remote identification
The document is applicable to UAS that operate at low-altitude over diverse environments, including
but not limited to, rural, urban, networked, network degraded, and network denied environments,
regardless of airspace class.
This document does not to purport to address UAS operating with approval to use ADS-B (automatic
dependent surveillance – broadcast) or secondary surveillance radar transponders nor does it purport
to solve ID needs of UAS for all operations.
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© ISO 2023 – All rights reserved

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INTERNATIONAL STANDARD ISO 23629-8:2023(E)
UAS traffic management (UTM) —
Part 8:
Remote identification
1 Scope
This document defines the generic concept and common framework of unmanned aircraft system (UAS)
remote identification, which is mainly used to electronically identify an in-flight unmanned aircraft
(UA). This document sets the minimum performance standards for direct remote identification.
This document does not cover requirements for modules installed in UA or requirements for network
remote identification.
This document does not cover the identity of other information technology (IT) entities, such as the
station of the remote pilot, the workstation of the fleet manager or any other connected entity.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 21384-4, Unmanned aircraft systems — Part 4: Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 21384-4 and the following
apply.
ISO and IEC ma
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 23629-8
ISO/TC 20/SC 16 Secretariat: ANSI
Voting begins on: Voting terminates on:
2022-06-06 2022-08-29
UAS Traffic Management (UTM) —
Part 8:
Remote identification
ICS: 49.020
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 23629-8:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

---------------------- Page: 1 ----------------------
ISO/DIS 23629-8:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DIS 23629-8:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Introduction . 2
5 UAS Remote Identification Overview . .3
5.1 General . 3
5.2 Classification of UAS Remote Identification . 3
6 Direct Remote Identification . 4
6.1 General . 4
6.2 Direct Remote Identification message . 5
6.3 Transmission method and transport protocols . 5
6.4 Transmission performance . 6
Annex A (informative) Comparison of UAS remote identification related standards .7
Bibliography . 9
iii
© ISO 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DIS 23629-8:2022(E)
Foreword
ISO (the International Organisation for Standardisation) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organisations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardisation.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organisation (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
iv
  © ISO 2022 – All rights reserved

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DRAFT INTERNATIONAL STANDARD ISO/DIS 23629-8:2022(E)
UAS Traffic Management (UTM) —
Part 8:
Remote identification
1 Scope
This document provides a high-level concept and framework of UAS remote identification that is mainly
used to electronically identify an in-flight UA. This document defines UAS remote identification generic
concept, common framework, and minimum performance standards for direct remote identification.
This document does not cover requirements for modules installed in UA nor requirements for network
remote identification.
This document does not cover the identity of other Information Technology (IT) entities, such as the
station of the Remote Pilot or the workstation of the Fleet Manager or any other connected entity.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 21384-4, Unmanned aircraft systems — Part 4: Vocabulary
ISO/DIS 23629-5, UAS Traffic Management (UTM) — Part 5: UTM Functional Structure
ISO/FDIS 23629-12, UAS Traffic Management (UTM) — Part 12:Requirements for UTM service providers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 21384-4 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
ADS-B
automatic dependent surveillance – broadcast
ADS is a means by which aircraft, aerodrome vehicles and other objects can automatically transmit
and/or receive data such as identification, position and additional data, as appropriate, in a broadcast
mode via a data link
[SOURCE: ICAO Doc 4444 PANS-ATM]
3.2
altitude
vertical distance of a level, a point or an object considered as a point, measured from mean sea level
1
© ISO 2022 – All rights reserved

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ISO/DIS 23629-8:2022(E)
3.3
GCS
ground control station
the part of a UAS that remotely controls the UA
[SOURCE: ASTM F3411-19,Standard specification for remote ID and tracking]
3.4
height
vertical distance of a level, a point or an object considered as a point, measured from a specified datum
4 Introduction
While UAS have been used in various comme
...