Materials supporting the extension of the work on Phase 2 items in the development of the light vehicle emissions GTR.

Proposal of amendments to document GRPE/2017/9 by the WLTP informal group for the January 2018 GRPE session (i.e., amendments to Amendment 3 of GTR 15 which was adopted (as document WP.29/2017/140) by WP.29 during its November 2017 session).

List of informal proposals under development within the WLTP informal group for possible submission to the January GRPE session.

Agreed proposal of the Dual-Axis Dynamometer Taskforce submitted for approval by the WLTP informal group during its 21st (January 2018) session and inclusion in the draft Amendment 4 to GTR 15.

Proposal for refinements to the text with regard to testing of electric vehicles under Annexes 4 and 8.

Status report of the task force working on the transposition of GTR 15 into a UN Regulation for use under type approval.

Draft letter intended for the UN Office of Legal Affairs to handle three planned series of amendments to the proposed UN Regulation transposing GTR 15 (WLTP) simultaneously. Normally, each series of amendments to a regulation must be implemented sequentially. In the case of WLTP, the informal group is proposing to use the series of amendment to implement stringency levels based upon regional needs (e.g., 00 series for the EU, the 01 series for Japan, and the 02 series as the most stringent set of requirements). The informal group is considering a request to handle this situation differently such that the 3 initial series would be implemented simultaneously, enabling future changes in regional stringency to proceed in a timely fashion (e.g., parallel development of new series based on regional objectives).