Status
Not Published
Public Enquiry End Date
12-Mar-2026
Technical Committee
ITC - Information technology
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
17-Sep-2026
Due Date
05-Nov-2026
Completion Date
02-Oct-2026

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SIST EN ISO 17573-3:2025/oprA1:2026

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SIST EN ISO 17573-3:2025/kprA1:2026 is Amendment 1 to the Part 3 data dictionary for electronic fee collection (EFC) system architecture for vehicle-related tolling, published by SIST and aligned with ISO 17573-3:2024. It updates the vocabulary for vehicle engine description, the tariff class data type, and the Annex A ASN.1 package used for EFC common data objects. It is intended for people who design, implement, check, or maintain tolling data models and message definitions.

What does SIST EN ISO 17573-3:2025/kprA1:2026 specify?

SIST EN ISO 17573-3:2025/kprA1:2026 specifies targeted updates to the EFC data dictionary rather than a full rewrite of the base part. The amendment touches one engine-characteristics subclause, relocates one tariff-class data type, and replaces Annex A with an updated ASN.1 reference package.

AnnexWhat it covers
Annex A, normativeEFC common data type definitions, including the ASN.1 module reference and file integrity check

The document is organized around the amended subclauses in Clause 5 and the replaced Annex A. For users, that means the change set is small but important: systems that exchange tolling data need to use the updated codes and the updated data-type definition.

What are the key requirements of SIST EN ISO 17573-3:2025/kprA1:2026?

SIST EN ISO 17573-3:2025/kprA1:2026 adds new values to EngineCharacteristics in 5.2.21. The added codes cover several dual-fuel, hybrid, combined, and serial-hybrid engine arrangements, including combinations with diesel, petrol, petrol ethanol, compressed natural gas, liquefied petroleum gas, and external battery charging. In practice, tolling systems need these codes to describe vehicles more precisely when engine type affects classification or charging.

SIST EN ISO 17573-3:2025/kprA1:2026 deletes subclause 5.3.26 and moves TariffClassDescription into the complex data types area as 5.6.6. That matters because implementers should use the relocated definition in the current structure of the data dictionary, not the deleted subclause location.

How is TariffClassDescription defined?

SIST EN ISO 17573-3:2025/kprA1:2026 defines TariffClassDescription as an ordered list of five optional components. The first component, tariffClassId, has a default value of 0 if it is not supplied. The other components are localVehicleClassId, timeClassId, locationClassId, and userClassId. In practice, this tells message designers which fields can be omitted and how a tariff class is built from linked classification elements.

SIST EN ISO 17573-3:2025/kprA1:2026 replaces Annex A with a normative ASN.1 description of the EFC common data objects. Annex A says the syntax uses Abstract Syntax Notation One (ASN.1) according to ISO/IEC 8824-1, and it identifies the ASN.1 module by Object Identifier. It also provides a SHA-256 hash for the referenced file, which allows implementers to check that they are using the correct module file.

SIST EN ISO 17573-3:2025/kprA1:2026 uses the SHA-256 algorithm as specified in NIST 180-4 for that integrity check. In practice, this helps organizations confirm that the ASN.1 module they download matches the referenced version.

What terms does SIST EN ISO 17573-3:2025/kprA1:2026 define?

  • Electronic fee collection (EFC) - The tolling context covered by the document, where vehicle-related charges are handled through electronic systems.
  • ASN.1 - Abstract Syntax Notation One, the notation used in Annex A to define the syntax of the EFC common data objects.
  • EngineCharacteristics - The data element in 5.2.21 that lists engine-type codes for describing how a vehicle is powered.
  • TariffClassDescription - The complex data type that combines tariff, vehicle, time, location, and user classification into one ordered structure.
  • SHA-256 - The cryptographic hash method used in Annex A to verify the integrity of the referenced ASN.1 file.
  • Object Identifier - The ASN.1 identifier used to name the referenced module uniquely.

Who uses SIST EN ISO 17573-3:2025/kprA1:2026?

SIST EN ISO 17573-3:2025/kprA1:2026 is used by designers and maintainers of EFC and vehicle-related tolling systems, especially in road transport and IT applications in transport. It is relevant for system architects, data modelers, software suppliers, tolling operators, and test or conformity teams that exchange or validate structured tolling data.

What changed in SIST EN ISO 17573-3:2025/kprA1:2026 from the previous edition?

SIST EN ISO 17573-3:2025/kprA1:2026 is Amendment 1 to ISO 17573-3:2024. The amendment adds new EngineCharacteristics values, deletes subclause 5.3.26, moves TariffClassDescription into 5.6.6 in the complex data types clause, and replaces Annex A with an updated ASN.1 module reference and SHA-256 file check.

Which standards are used with SIST EN ISO 17573-3:2025/kprA1:2026?

  • ISO 17573-3:2024 - The base Part 3 document that this amendment updates.
  • ISO/IEC 8824-1 - The standard named in Annex A for ASN.1 syntax.
  • NIST 180-4 - The reference named for the SHA-256 algorithm used to verify the referenced ASN.1 file.

What does the SIST EN ISO 17573-3:2025/kprA1:2026 document contain?

The document contains the amendment text for 5.2.21 EngineCharacteristics, including the new vehicle-powertrain codes. It also contains the deletion of 5.3.26 and the new 5.6.6 TariffClassDescription definition with its table of components and defaulted first field.

Annex A contains the updated normative description of the EFC common data objects in ASN.1 form. It includes the module identifier, a file location, and Table A.1 with the SHA-256 hash used for file verification.

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Effective Date
11-Jun-2025

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Frequently Asked Questions

SIST EN ISO 17573-3:2025/kprA1:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Electronic fee collection - System architecture for vehicle-related tolling - Part 3: Data dictionary - Amendment 1 (ISO 17573-3:2024/FDAmd1:2026)". This standard covers: Electronic fee collection - System architecture for vehicle-related tolling - Part 3: Data dictionary - Amendment 1 (ISO 17573-3:2024/FDAmd1:2026)

Electronic fee collection - System architecture for vehicle-related tolling - Part 3: Data dictionary - Amendment 1 (ISO 17573-3:2024/FDAmd1:2026)

SIST EN ISO 17573-3:2025/kprA1:2026 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.

SIST EN ISO 17573-3:2025/kprA1:2026 has the following relationships with other standards: It is inter standard links to SIST EN ISO 17573-3:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN ISO 17573-3:2025/kprA1:2026 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)


SLOVENSKI STANDARD
SIST EN ISO 17573-3:2025/oprA1:2026
01-marec-2026
Elektronsko pobiranje pristojbin - Sistemska arhitektura za cestninjenje vozil - 3.
del: Podatkovni slovar - Dopolnilo A1 (ISO/DIS 17573-3:2024/DAmd1 :2025)
Electronic fee collection - System architecture for vehicle-related tolling - Part 3: Data
dictionary - Amendment 1 (ISO/DIS 17573-3:2024/DAmd1 :2025)
Elektronische Gebührenerhebung - Systemarchitektur für fahrzeugbezogene Maut - Teil
3: Datendefinition - Änderung 1
Perception de télépéage - Architecture de systèmes pour le péage lié aux véhicules -
Partie 3: Dictionnaire de données - Amendement 1 (ISO/DIS 17573-
3:2024/DAmd1:2025)
Ta slovenski standard je istoveten z: EN ISO 17573-3:2024/prA1:2025
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
SIST EN ISO 17573-3:2025/oprA1:2026 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN ISO 17573-3:2025/oprA1:2026

SIST EN ISO 17573-3:2025/oprA1:2026
DRAFT
Amendment
ISO 17573-3:2024/
DAM 1
ISO/TC 204
Electronic fee collection — System
Secretariat: ANSI
architecture for vehicle-related
tolling —
Voting begins on:
2025-12-25
Part 3:
Voting terminates on:
Data dictionary 2026-03-19
AMENDMENT 1
Perception de télépéage — Architecture de systèmes pour le
péage lié aux véhicules —
Partie 3: Dictionnaire de données
AMENDEMENT 1
ICS: 35.240.60; 03.220.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
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NATIONAL REGULATIONS.
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.
Reference number
ISO 17573-3:2024/DAM 1:2025(en)

SIST EN ISO 17573-3:2025/oprA1:2026
DRAFT
ISO 17573-3:2024/DAM 1:2025(en)
Amendment
ISO 17573-3:2024/
DAM 1
ISO/TC 204
Electronic fee collection — System
Secretariat: ANSI
architecture for vehicle-related
tolling —
Voting begins on:
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
ICS: 35.240.60; 03.220.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
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POTENTIAL TO BECOME STANDARDS TO
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or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
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Website: www.iso.org
Published in Switzerland Reference number
ISO 17573-3:2024/DAM 1:2025(en)

ii
SIST EN ISO 17573-3:2025/oprA1:2026
ISO 17573-3:2024/DAM 1:2025(en)
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