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WP.29 Rulemaking Project
Light Vehicle Emissions Type Approval Test Procedure

This page covers the work on transposing GTR No. 15 (Worldwide Harmonized Light Vehicle Emissions Test Procedure-WLTP) into the form of a UN type-approval regulation as used under the 1958 Agreement.

Pushed by the European Union as part of the effort to improve emissions regulations, Japan also signed on in May 2015 to develop the text (see document GRPE-71-02 for more details).

Draft text available

Series of Amendments and Supplements

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Development of the Initiative

Pending Changes to Light Vehicle Emissions Type Approval Test Procedure

Latest Documents

10 Dec 2019
WLTP UNR: 00 and 01 series "square brackets" summary-post session draft | WLTP-TTF-10-07
5 Dec 2019
Calendar of WLTP and related meetings (5 Dec 2019) | N/A
4 Dec 2019
Draft WLTP ODB UN Regulation provisions | WLTP-TTF-10-06
See all 261 related documents

Latest Meeting Discussions

WLTP Subgroup on Electrified Vehicles | WLTP-SG-EV-32 | 14 Jan 2020
Informal Group on the Worldwide Harmonized Light Vehicles Test Procedure | Session 29 | 13 Jan 2020
WLTP Subgroup on Electrified Vehicles | WLTP-SG-EV-30 | 11 Dec 2019
See more related meetings