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Working Party on Pollution and Energy - Introduction

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.

Examples of the deliveries of GRPE:
UN Regulations Nos. 83 and 154 are containing the techical provisions for the pollutant emissions standards up to Euro 6 for cars.
UN Regulation No. 49 is containing the techical provisions for the pollutant emissions standards up to EURO VI for trucks and busses.
UN Regulations Nos. 101 and 154  are containing the technical provisions for the measurement of the fuel economy and the CO2 emissions for cars.

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 150 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.
 
The work of GRPE experts is transparent: All agendas, working documents and reports are openly accessible on this Internet website.

Latest news

January 2021: GRPE hosted a workshop on airborne emissions from brake systems. With the share of particulate emissions from road transport coming from the exhaust is steadily decreasing, non-exhaust emissions from brake, tyre and road wear must now be taken into account; GRPE hold a workshop dedicated to consulting GRPE on the next steps for the finalization of a measurement procedure developed by the Informal Working Group on Particulate Measurement Programme (PMP). The workshop was attended by more than 200 experts. Workshop material  and minutes are available here.

June 2020: GRPE updated provisions on in-vehicle air quality measurement procedure. at its June 2020 session, UNECE Working Party on Pollution and Energy (GRPE) has endorsed a new procedure developed by the Informal Working Group on Vehicle Interior Air Quality (VIAQ) now  includes a procedure to measure exhaust gases entering the vehicle’s cabin through ventilation systems.

January 2020: GRPE endorsed stringent new vehicle emissions regulation. at its January 2020 session, UNECE Working Party on Pollution and Energy (GRPE) has finalized a new UN regulations on Worldwide Light duty Test Procedure (WLTP). More than half of the cars sold globally are set to use WLTP in the next few years. the new UN Regulation on WLTP will provide uniform provision to perform WLTP tests and ease the certification process for car manufacturers and contracting parties applying the new UN Regualtion.

May 2019: UNECE’s new recommendation on fuel quality will help countries to reduce air pollution. At its 2019 May session, UNECE Working Party on Pollution and Energy (GRPE) has issued new recommendations on fuel quality linked with latest emission control technologies available on cars, vans, trucks and buses.

January 2019: UNECE hosts a workshop on Heavy Duty Fuel Economy (HDFE) standards harmonization. the agenda, presentations and minutes of the side event can be found following the links.

June 2018: UNECE works on global methodology to measure on-road car emissions. At its June 2018 session, members of UNECE’s World Forum for Harmonization of Vehicle Regulations have decided to develop a harmonized procedure to perform real driving emission testing on open roads.