Series of proposals from the WLTP informal group to improve and clarify the text of GTR 15 on light vehicle emissions, amending the contents of document GRPE-76-26/Rev.1.

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.

Proposal of minor corrections to the draft Amendment 1 to GTR 19 (WP.29/2018/73).

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.