Criteria for dual-axis chassis dynamometers have been added to the GTR in paragraph 2.3 in Annex 5, with the intention to make the use of a dual-axis chassis dynamometer mandatory for vehicles tested in 4WD mode. Though these criteria were put in place, there was no specific requirement added to include the requirement that vehicles tested in 4WD mode are actually tested on a dual-axis chassis dynamometer. This proposal would add a paragraph to address this omission.

Review of European testing to validate the Phase 1a test procedures of the light vehicle emissions GTR No. 15.

Summary of feedback received from labs conducting tests according to the phase 1a version of the light vehicle emissions GTR No. 15.

Comments from India concerning the Phase 1b amendment to GTR No. 15 (document GRPE/2016/3).

Status report to the WLTP informal group as part of the ongoing validation of the Phase 1a test procedures.

Presentation from the WLTP informal group drafting coordinator on the status of the draft Phase 1b amendment to GTR No. 15 on light vehicle emissions.