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World Forum for Harmonization of Vehicle Regulations (WP.29) – How It Works, How to Join It

Published: June 2012

(Decembre 2018) Note: a revised publication is under preparation in order to reflect the developments within WP.29 since 2012 (Adoption of the Revision 3 to the 1958 Agreement, Amendment to the Terms of Reference and Rules of Procedures, proposed amendment to the 1997 Agreement, the adoption of new Resolutions, the adoption of new UN Rules to be annexed to the 1997 Agreement and the new structure of the subsidiary bodies of WP.29)


This publication presents a comprehensive view of WP.29 beginning with a brief history from its inception as a regional forum through its recent transformation into a world forum. The principal intent of this document is to present the organizational structure and operational process of WP.29 and its subsidiary bodies and their relationship to specific multinational agreements under the United Nations. It also describes the three main UNECE agreements concerning vehicle regulations:

1. Agreement concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be fitted and / or be used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions done at Geneva on 20 March 1958, including the amendments entered into force on 16 October 1995
E/ECE/324 - E/ECE/TRANS/505/Rev.2 - October 1995 - E,F,R
- Annexed to the Agreement are 128 Regulations - E,F,R
- A complete information about the Status of the Agreement and application of ECE Regulations by its Contracting Parties contained in document TRANS/WP.29/343/Rev.20
Also available at:

2. Agreement concerning the Establishing of Global Technical Regulations for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be used on Wheeled Vehicles, done at Geneva on 25 June 1998
Global Registry: ECE/TRANS/180 & Add1-12
- Annexed to the Agreement are 12 global technical regulations, including their appendices, amendments and corrigenda
Also available at:

3. Agreement Concerning the Adoption of Uniform Conditions for Periodical Technical Inspections of Wheeled Vehicles and the Reciprocal Recognition of Such Inspections, done at Vienna on 13 November 1997
ECE/RCTE/CONF/4 & Add.1/Rev.1 - Rule No. 1-2
Also available at:

Electronic copy of this publication is available for download here:

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© 2012 United Nations Publications
The information in this document reflects the situation as at the end of May 2012.

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