The Working Party on Pollution and Energy (GRPE) is the subsidiary body of the World Forum for Harmonization of Vehicle Regulations (WP.29) that prepares regulatory proposals on pollution and energy efficiency to WP.29. This group of experts conducts research and analysis to develop emission and energy requirements for vehicles.
GRPE convenes officially twice a year and entrusts informal groups with specific problems that need to be solved urgently or that require special expertise. More than 120 experts participate at the sessions of GRPE.
The Working Party is open to the governmental experts from any member country of the United Nations, and to any regional economic integration organization set up by member countries of the United Nations, and to experts of governmental organizations. Experts of non-governmental organizations (NGOs) may participate in a consultative capacity. Final decisions are taken by Government representatives by vote at the World Forum WP.29 level.