Amendment 2 addresses the evaporative emission family definitions and improves Type 4 test procedures with regard to test equipment requirements and calibrations, evaporative emission measurement enclosures, and use of variable volume SHED facilities.
15. The Chair of the IWG on the Worldwide harmonized Light vehicles Test Procedures (WLTP) reported on the ongoing activities (GRPE-77-22). He briefly introduced the draft Amendment 5 to UN GTR No. 15 (GRPE-77-17) and the draft Amendment 2 to UN GTR No. 19 (GRPE-77-18).