OASIS and the OASIS UBL TC [1] are pleased to announce that Universal Business Language Version 2.5 CS01 is now available for public review and comment.

The Universal Business Language (ISO/IEC 19845) is an open library of standard electronic business documents and information models designed for a wide range of supply chain, procurement, and transportation processes. It provides a syntax-neutral semantic library that supports various syntaxes such as XML and JSON, enabling interoperability across different industries and systems. UBL helps streamline information exchange, eliminating the need for data re-entry, and enhancing global harmonization and interoperability in e-commerce.
The TC received three Statements of Use from Logius, Helger IT Consulting GmbH, and Koordinierungsstelle für IT-Standards (KoSIT) [3].

The candidate specification and related files are available here:

Universal Business Language Version 2.5
Committee Specification
01 15 April 2026

https://docs.oasis-open.org/ubl/cs01-UBL-2.5/UBL-2.5.html
https://docs.oasis-open.org/ubl/cs01-UBL-2.5/UBL-2.5.pdf
https://docs.oasis-open.org/ubl/cs01-UBL-2.5/UBL-2.5.xml (Authoritative)

Associated files can be found at: https://docs.oasis-open.org/ubl/cs01-UBL-2.5/

Members of the UBL TC [1] approved this specification by Special Majority Vote [2]. The specification had been released for public review as required by the TC Process [4].

Public Review Period
The 60-day public review is now open and ends 28 July 2026 at 23:59 UTC.

This is an open invitation to comment. OASIS solicits feedback from potential users, developers and others, whether OASIS members or not, for the sake of improving the interoperability and quality of its technical work.

Comments may be submitted to the project by any person through the use of the project’s Comment Facility. Members of the TC should submit feedback directly to the TC’s members-only mailing list. All others should follow the instructions listed here.

Alternatively, comments may be sent to: [email protected]

All comments submitted to OASIS are subject to the OASIS Feedback License, which ensures that the feedback you provide carries the same obligations at least as the obligations of the TC members. In connection with this public review  we call your attention to the OASIS IPR Policy [4] applicable especially [5] to the work of this technical committee. All members of the TC should be familiar with this document, which may create obligations regarding the disclosure and availability of a member’s patent, copyright, trademark and license rights that read on an approved OASIS specification.

OASIS invites any persons who know of any such claims to disclose these if they may be essential to the implementation of the above specification, so that notice of them may be posted to the notice page for this TC’s work.

Additional references:

[1] OASIS UBL TCgroups.oasis-open.org/communities/…
[2] Approval ballot:groups.oasis-open.org/higherlogic/ws/public/…
[3] Links to Statements of UseLogius: https://groups.oasis-open.org/discussion/statement-of-use-ubl-25Helger IT Consulting GmbH: https://groups.oasis-open.org/discussion/statement-of-use-ubl-25-1Koordinierungsstelle für IT-Standards (KoSIT): https://groups.oasis-open.org/discussion/fw-statement-of-use-ubl-25-from-coordination-office-for-it-standards-kosit
[4] www.oasis-open.org/policies-guidelines/ipr
[5] www.oasis-open.org/committees/ubl/ipr.phpwww.oasis-open.org/policies-guidelines/ipr/#RD-Limited