ISO 17573-3:2024/FDAmd 1
(Amendment)Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1
- Status
- Not Published
- Technical Committee
- ISO/TC 204 - Intelligent transport systems
- Drafting Committee
- ISO/TC 204/WG 5 - Fee and toll collection
- Current Stage
- 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
- Start Date
- 31-Aug-2026
- Completion Date
- 31-Aug-2026
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ISO 17573-3:2024/FDAmd 1 - Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1
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ISO 17573-3:2024/FDAmd 1 is an ISO amendment to Electronic fee collection - System architecture for vehicle-related tolling - Part 3: Data dictionary. It updates the data dictionary used in vehicle-related tolling systems, adding new vehicle and engine classifications, revising tariff-class description rules, and replacing Annex A with the ASN.1 definition and file-integrity reference for the EFC common data objects.
What does ISO 17573-3:2024/FDAmd 1 specify?
ISO 17573-3:2024/FDAmd 1 specifies changes to the data dictionary part of the ISO 17573 series for electronic fee collection (EFC). The amendment focuses on the structured data used to describe vehicles, engine types, tariff classes, and the referenced ASN.1 module.
The document is organized as targeted changes to Clause 5 and Annex A:
- 5.2.3 updates Alphabetindicator
- 5.2.21 updates EngineCharacteristics
- 5.2.57 updates TariffClassDescription and Table 57 - VehicleClass
- 5.3.26 is deleted
- 5.6 is extended with a new 5.6.6 TariffClassDescription
- Annex A is replaced with new EFC common data type definitions and file verification information
| Annex | What it covers |
|---|---|
| Annex A | Normative EFC common data type definitions, the ASN.1 module identifier, and the SHA-256 hash used to verify the referenced file |
What are the key requirements of ISO 17573-3:2024/FDAmd 1?
ISO 17573-3:2024/FDAmd 1 mainly expands the vocabulary and structure that tolling systems use to describe vehicles and tariff-related attributes. In practice, implementers need to update code lists, mappings and validation rules so back-office systems and roadside systems interpret the same data in the same way.
Vehicle identification and engine data
- Clause 5.2.3 adds a code for a structured Japanese licence plate number in the licencePlateNumber data element. This lets a system represent that plate format explicitly instead of handling it as a generic plate value.
- Clause 5.2.21 adds several EngineCharacteristics values covering dual-fuel, hybrid and range-extender combinations. This matters because tolling and vehicle-class logic often depends on the actual powertrain, so systems need to recognize these types consistently.
Vehicle class and tariff class structure
- Table 57 in 5.2.57 updates VehicleClass for European use with three parts: trailer presence, UNECE vehicle class and a local vehicle class. This lets a toll scheme separate the general vehicle group from local pricing rules.
- The local vehicle class is tied to the local toll scheme. In practice, this means a scheme can add its own classification without changing the broader UNECE-based grouping.
- Clause 5.6.6 defines TariffClassDescription as an ordered list of five optional components. The practical effect is that a tariff class can be built from several identifiers, not just a single code.
Data handling and defaults
- The TariffClassDescription definition gives tariffClassId a default value of zero when it is not present. Implementers therefore need to accept a missing value and treat it as the default, rather than rejecting the record.
- Deleting 5.3.26 and moving the same content to 5.6.6 reorganizes the complex data types section. Readers implementing the standard should follow the new location when building parsers, schemas or conformance checks.
File identity and verification
- Annex A replaces the text for the EFC common data object definitions with an ASN.1-based description and a file identifier. It also gives a SHA-256 hash for the referenced ASN.1 file, which lets implementers check that they are using the correct module.
What terms does ISO 17573-3:2024/FDAmd 1 define?
- Electronic fee collection (EFC) - An electronic tolling framework for collecting vehicle-related fees.
- Abstract Syntax Notation One (ASN.1) - The notation used to define the syntax of the EFC common data objects in Annex A.
- SHA-256 - The cryptographic hash algorithm used to verify the integrity of the referenced ASN.1 file.
- Toll service provider (TSP) - The party that provides the toll service and uses the tariff and vehicle data in practice.
- UNECE - The United Nations Economic Commission for Europe, whose vehicle classes are used in Table 57.
- TariffClassDescription - An ordered list of components used to specify a tariff class.
Who uses ISO 17573-3:2024/FDAmd 1?
ISO 17573-3:2024/FDAmd 1 is used by people who design, implement, test or operate electronic fee collection systems for vehicle-related tolling. Typical users include toll service providers (TSPs), ITS engineers, system integrators, back-office teams, and quality or conformance teams.
They use it to map vehicle attributes, maintain tariff-class data, exchange structured data between systems, and verify that their ASN.1-based implementations match the intended EFC data model. It is especially relevant where toll schemes need consistent handling of vehicle classes, engine types and scheme-specific tariff logic.
What changed in ISO 17573-3:2024/FDAmd 1 from the previous edition?
ISO 17573-3:2024/FDAmd 1 is Amendment 1 to the second edition of ISO 17573-3. The amendment:
- adds a structured Japanese licence plate indicator
- expands EngineCharacteristics with additional dual-fuel, hybrid and range-extender values
- updates VehicleClass and the way tariff classes are described
- moves TariffClassDescription from 5.3.26 to 5.6.6 in the complex data types section
- replaces Annex A with a new ASN.1 module reference and SHA-256 file hash
Which standards are used with ISO 17573-3:2024/FDAmd 1?
- ISO/IEC 8824-1 - defines ASN.1, the syntax used for the EFC common data objects referenced in Annex A.
- NIST 180-4 - specifies SHA-256, the hash algorithm used to verify the referenced ASN.1 file.
- ISO/IEC Directives, Part 1 - describes the development and maintenance procedures mentioned in the foreword.
- ISO/IEC Directives, Part 2 - provides the editorial rules used to draft the document.
What does the ISO 17573-3:2024/FDAmd 1 document contain?
The amendment contains targeted edits to the data dictionary rather than a full rewrite of the base part. Its substantive content is the added code lists, the revised VehicleClass table, the relocated TariffClassDescription definition, and the replacement of Annex A with file-identity information for the ASN.1 module.
It also includes the formal amendment instructions such as add, delete, move and replace, which are used to update the base ISO 17573-3 text. For implementers, the most useful parts are the changed data type definitions and the Annex A hash that supports configuration control and verification.
Relations
- Effective Date
- 12-Feb-2026
- Effective Date
- 07-Jun-2025
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ISO 17573-3:2024/FDAmd 1 - Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1
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Frequently Asked Questions
ISO 17573-3:2024/FDAmd 1 is a draft published by the International Organization for Standardization (ISO). Its full title is "Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1". This standard covers: Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1
Electronic fee collection — System architecture for vehicle-related tolling — Part 3: Data dictionary — Amendment 1
ISO 17573-3:2024/FDAmd 1 is classified under the following ICS (International Classification for Standards) categories: 03.220.20 - Road transport; 35.240.60 - IT applications in transport. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 17573-3:2024/FDAmd 1 has the following relationships with other standards: It is inter standard links to EN ISO 17573-3:2024/FprA1:2026, ISO 17573-3:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 17573-3:2024/FDAmd 1 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
FINAL DRAFT
Amendment
ISO 17573-3:2024/
FDAM 1
ISO/TC 204
Electronic fee collection — System
Secretariat: ANSI
architecture for vehicle-related
Voting begins on:
tolling —
2026-08-31
Part 3:
Voting terminates on:
2026-10-26
Data dictionary
AMENDMENT 1
Perception de télépéage — Architecture de systèmes pour le
péage lié aux véhicules —
Partie 3: Dictionnaire de données
AMENDEMENT 1
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO 17573-3:2024/FDAM 1:2026(en) © ISO 2026
FINAL DRAFT
ISO 17573-3:2024/FDAM 1:2026(en)
Amendment
ISO 17573-3:2024/
FDAM 1
ISO/TC 204
Electronic fee collection — System
Secretariat: ANSI
architecture for vehicle-related
Voting begins on:
tolling —
Part 3:
Voting terminates on:
Data dictionary
AMENDMENT 1
Perception de télépéage — Architecture de systèmes pour le
péage lié aux véhicules —
Partie 3: Dictionnaire de données
AMENDEMENT 1
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 SUPPOR TING DOCUMENTATION.
© ISO 2026
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO 17573-3:2024/FDAM 1:2026(en) © ISO 2026
ii
ISO 17573-3:2024/FDAM 1:2026(en)
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 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).
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 204, Intelligent transport systems.
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.
iii
ISO 17573-3:2024/FDAM 1:2026(en)
Electronic fee collection — System architecture for vehicle-
related tolling —
Part 3:
Data dictionary
AMENDMENT 1
5.2.3
Below Table 3, add the following text between the penultimate and last items in the list:
— japanStructuredLpn, indicating a structured Japanese licence plate number in the data element
licencePlateNumber;
5.2.21
Below Table 21, add the following text between the penultimate and last items in the list:
— dualFuelDieselLpg, indicating dual operating with diesel and liquefied petroleum gas;
— dualFuelPetrolEthanolCng, indicating dual operating with petrol ethanol (see definitio
...
ISO 17573-3:2024/FDAMFDAmd 1:2026(en)
ISO/TC 204
Secretariat: ANSI
Date: 2026-07-13xx
Second edition
AMENDMENT 1
Electronic fee collection — System architecture for vehicle-related
tolling —
Part 3:
Data dictionary
AMENDMENT 1
Perception de télépéage — Architecture de systèmes pour le péage lié aux véhicules —
Partie 3: Dictionnaire de données
AMENDEMENT 1
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FDIS stage
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: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
iii
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 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).
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 204, Intelligent transport systems.
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
Electronic fee collection — System architecture for vehicle-related
tolling — Part 3: Data dictionary
AMENDEMENT 1
Part 3:
Data dictionary
AMENDMENT 1
5.2.3, Alphabetindicator
Below Table 3, add the following text between the penultimate and last items in the list:
— — japanStructuredLpn, indicating a structured Japanese licence plate number in the data element
licencePlateNumber;
5.2.21, EngineCharacteristics
Below Table 21, add the following text between the penultimate and last items in the list:
— — dualFuelDieselLpg, indicating dual operating with diesel and liquefied petroleum gas;
— — dualFuelPetrolEthanolCng, indicating dual operating with petrol ethanol (see definition for
code petrolEthanol) and compress natural gas;
— — dualFuelPetrolEthanolLpg, indicating dual operating with petrol ethanol (see definition for
code petrolEthanol) and liquefied petroleum gas;
— — hybridPetrolEthanolExternalBattery, indicating hybrid drive with petrol ethanol (see
definition for code petrolEthanol) and electric engine with external chargeable battery (plug-in
hybrid);
— — combinedPetrolEthanolElectricEngine, indicating hybrid drive with petrol ethanol (see
definition for code petrolEthanol) and electric engine (non-plug-in hybrid);
— — hybridBivalentDieselCngExternalBattery, indicating hybrid drive with bivalent operating
engine with diesel and compressed natural gas, and electric engine with external chargeable battery (plug-
in hybrid);
— — combinedBivalentDieselCngElectricEngine, indicating hybrid drive with bivalent
operating engine with diesel and compressed natural gas, and electric engine (non-plug-in hybrid);
ISO
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