Written overview of the status of work on heavy-duty hybrid vehicle emissions standards (complements presentation by the group to the Working Party on Pollution and Energy. See document GRPE-63-19.)

Presentation to the Working Party on Pollution and Energy (GRPE), covering the work on emissions testing standards for heavy-duty hybrid (HDH) vehicles, including status of research programs, roadmap, report on 7th and 8th HDH meetings, open items, and plans for next meetings. (See also document GRPE-63-18 for written status report.)