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

Overview

ISO 23629-8:2023 - "UAS traffic management (UTM) - Part 8: Remote identification" defines the generic concept and common framework for UAS remote identification, focusing specifically on direct remote identification. The standard sets minimum performance requirements for in‑flight unmanned aircraft (UA) to electronically identify themselves via local broadcast (e.g., Bluetooth or Wi‑Fi). It is intended for low‑altitude UAS operations across diverse environments (urban, rural, network‑degraded or network‑denied) and emphasizes operator accountability and local situational awareness. The standard does not cover network remote identification, UA module installation requirements, or identities of other IT entities (remote pilot stations, fleet management workstations).

Key topics and requirements

• Scope: Minimum performance standards for direct remote identification; excludes network remote ID and IT‑entity identity requirements.
• Direct remote identification concept: Local broadcast of lightweight packets embedded in Bluetooth/Wi‑Fi advertisements so commonly carried receivers (e.g., smartphones) or placed receivers can obtain identification and flight info without two‑way connection.
• Transmission methods: Mandatory support for Bluetooth and Wi‑Fi broadcast mechanisms (industry transport protocols). Additional protocols may be added as technology evolves.
• Message content (minimum):
  • UAS ID - one or more of: ANSI/CTA‑2063‑A serial number, Civil Aviation Authority registration ID, or UTM‑assigned session ID.
  • Flight information (mandatory): operational status (ground/airborne/emergency), latitude, longitude, altitude or height, ground speed, timestamp.
  • Flight information (recommended): direction, vertical speed.
• Performance: Messages must be transmitted at regular intervals during flight and be receivable by handheld devices or dedicated receivers. The standard provides a high‑level framework; specific transmission timing and additional performance metrics may be aligned with other industry standards.

Applications and users

• Who uses it: UAS manufacturers, OEMs of add‑on remote ID modules, receiver and app developers, UTM service providers, civil aviation authorities, law enforcement, and fleet managers implementing local identification and accountability capabilities.
• Practical use cases:
  • Enabling bystanders, law enforcement, and local authorities to identify a nearby UA in real time using a smartphone or dedicated receiver.
  • Supporting safety and privacy enforcement in network‑denied or degraded environments.
  • Providing a baseline specification for manufacturers to integrate direct broadcast remote ID into small UAS.

Related standards

• ISO 23629 series (e.g., Part 5, Part 12) for broader UTM context.
• ASTM F3411-22 (remote ID and tracking), prEN 4709‑002 (direct remote identification), EUROCAE guidance, and ANSI/CTA‑2063‑A (UAS serial number format) - ISO 23629‑8:2023 aligns at a high level with these documents while focusing on minimum requirements for direct remote identification.

Keywords: ISO 23629-8:2023, UAS remote identification, direct remote identification, UTM, Bluetooth, Wi‑Fi, UAS ID, ANSI/CTA-2063-A, unmanned aircraft system.

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 2023
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ii
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
Foreword
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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
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.
v
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
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