Engine & Emissions
Below is a directory to the GAR website pages addressing vehicle propulsion systems and environmental performance. The Working Party on Pollution and Energy (GRPE) is the primary rulemaking body under the World Forum for these activities.
Latest Documents
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Draft minutes of the 18th VIAQ informal group session
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VIAQ-18-09 | 21 January | 21 Jan 2020 | 2020-01-21 10:34:02 UTC | |
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UN R (WLTP) 00 series of amendments to UN Regulation on WLTP
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GRPE-80-38 | 20 January | 20 Jan 2020 | 2020-01-20 10:52:28 UTC | |
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UN R (WLTP) the 01 series of amendments to UN Regulation on WLTP
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GRPE-80-39 | 20 January | 20 Jan 2020 | 2020-01-20 11:04:58 UTC | |
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GTR 19: Modifications to Amendment 3
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GRPE-80-34 | 20 January | 20 Jan 2020 | 2020-01-20 10:07:32 UTC | |
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EPA Update on the Cleaner Trucks Initiative
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GRPE-80-33 | 20 January | 20 Jan 2020 | 2020-01-20 09:19:55 UTC | |
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UN R83: Proposal for a new Supplement to 06 and 07 series of amendments
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GRPE-80-18/Rev.1 | 20 January | 20 Jan 2020 | 2020-01-15 07:01:36 UTC | |
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RE6: Proposed amendments to ECE/TRANS/WP.29/2019/120
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GRPE-80-15 | 20 January | 20 Jan 2020 | 2020-01-15 06:30:20 UTC | |
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Work by GRPE – Priorities and recurrent items
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GRPE-80-05/Rev.1 | 20 January | 20 Jan 2020 | 2019-12-26 10:48:54 UTC | |
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PMP informal group report to the January 2020 GRPE session
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PMP-52-01 | 16 January | 16 Jan 2020 | 2020-01-21 17:48:13 UTC | |
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GTR 15: Information on the proposal for amendment 6
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GRPE-80-40 | 16 January | 16 Jan 2020 | 2020-01-20 10:35:14 UTC | |
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WLTP Transposition TF report on the transposition of GTR15 (WLTP) and GTR19 (Evap) into UN Regulations
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GRPE-80-37 | 16 January | 16 Jan 2020 | 2020-01-20 10:24:11 UTC | |
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EVE IWG Status report
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GRPE-80-36 | 16 January | 16 Jan 2020 | 2020-01-20 10:13:52 UTC | |
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Draft Amendment 1 to UN GTR 18 : OBD2
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GRPE-80-32 | 16 January | 16 Jan 2020 | 2020-01-17 01:37:06 UTC | |
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GRPE-80: Updated provisional agenda
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GRPE-80-06/Rev.4 | 16 January | 16 Jan 2020 | 2019-12-26 10:53:25 UTC | |
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UN GTR Real Driving Emissions (RDE) draft text developed by the RDE IWG
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GRPE-80-30 | 15 January | 15 Jan 2020 | 2020-01-16 10:57:11 UTC | |
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UN GTR19 Technical Report to Amendment 3
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GRPE-80-35 | 15 January | 15 Jan 2020 | 2020-01-20 10:03:54 UTC | |
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UN R Real Driving Emissions (RDE) draft text developed by RDE IWG
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GRPE-80-31 | 15 January | 15 Jan 2020 | 2020-01-16 13:05:57 UTC | |
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RDE IWG Progress report from experts from IWG Chair (EC)
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GRPE-80-29 | 15 January | 15 Jan 2020 | 2020-01-16 10:47:45 UTC | |
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PMP IWG Progress report
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GRPE-80-28 | 15 January | 15 Jan 2020 | 2020-01-16 10:39:35 UTC | |
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UN GTR 2, 17, 18, EPPR L-category Progress report from EPPR IWG
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GRPE-80-27 | 15 January | 15 Jan 2020 | 2020-01-16 10:30:28 UTC | |
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Fuel Efficiency Workshop Summary of discussions
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GRPE-80-26 | 15 January | 15 Jan 2020 | 2020-01-16 10:20:31 UTC | |
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UN GTR 4 Proposal for corrigendum
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GRPE-80-25 | 15 January | 15 Jan 2020 | 2020-01-16 10:11:00 UTC | |
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UN WLTP Progress report of the WLTP Informal Working Group
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GRPE-80-24 | 15 January | 15 Jan 2020 | 2020-01-16 10:04:58 UTC | |
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UN MR3 VIAQ IWG status report
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GRPE-80-23 | 15 January | 15 Jan 2020 | 2020-01-16 09:57:39 UTC | |
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UN MR3 Revision 1 of the Mutual Resolution (M.R.3) on Vehicle Interior Air Quality (track changes)
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GRPE-80-22 | 15 January | 15 Jan 2020 | 2020-01-16 09:18:09 UTC | |
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UN MR3 Revision 1 of the Mutual Resolution (M.R.3) on Vehicle Interior Air Quality
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GRPE-80-21 | 15 January | 15 Jan 2020 | 2020-01-16 09:11:53 UTC | |
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UN R115 Proposal for a new Corrigendum
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GRPE-80-20 | 15 January | 15 Jan 2020 | 2020-01-16 09:02:05 UTC | |
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Discrepancies between GTR 4 and UN R49
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GRPE-80-17 | 15 January | 15 Jan 2020 | 2020-01-15 06:55:56 UTC | |
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UN R83: Proposal of amendments to document GRPE/2020/5
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GRPE-80-16 | 15 January | 15 Jan 2020 | 2020-01-15 06:38:14 UTC | |
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GRPE highlights of the WP.29 Sessions of June and November 2019
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GRPE-80-03 | 15 January | 15 Jan 2020 | 2019-12-26 10:31:43 UTC | |
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Case studies on analysis of light- duty vehicle Exhaust gas control signal in Korea
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GRPE-80-19 | 14 January | 14 Jan 2020 | 2020-01-16 08:51:23 UTC | |
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GTR 15: Emerging Amendment 6 working draft
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- | 13 January | 13 Jan 2020 | 2020-01-13 13:35:27 UTC | |
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WLTP UN Regulation: 00 series of amendments-Japan comments on RMSSE indices
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- | 13 January | 13 Jan 2020 | 2020-01-13 13:25:53 UTC | |
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Cabin Air Filter - Real World Testing Preconditions & Technical Requirements
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VIAQ-18-07 | 13 January | 13 Jan 2020 | 2020-01-13 13:18:16 UTC | |
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MR3: Draft Revision 1 of the resolution on vehicle interior air quality
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VIAQ-18-06 | 13 January | 13 Jan 2020 | 2020-01-13 13:16:30 UTC | |
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VIAQ quality control (update)
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VIAQ-18-05 | 13 January | 13 Jan 2020 | 2020-01-13 13:15:05 UTC | |
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Draft agenda for the 18th VIAQ informal group session
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VIAQ-18-02/Rev.1 | 13 January | 13 Jan 2020 | 2019-12-10 17:30:07 UTC | |
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Invitation to the 18th VIAQ informal group session
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VIAQ-18-01/Rev.1 | 9 January | 9 Jan 2020 | 2019-12-10 17:29:12 UTC | |
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GTR 18: Draft L-OBD2 Phase 2 (clean version)
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OBD2CG-16-03 | 9 January | 9 Jan 2020 | 2020-01-09 15:28:00 UTC | |
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GTR 18: Draft L-OBD 2 Phase 2 with track changes
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OBD2CG-16-02 | 9 January | 9 Jan 2020 | 2020-01-09 15:26:04 UTC | |
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Draft agenda for the 33rd EPPR informal group session
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EPPR-33-01/Rev.1 | 9 January | 9 Jan 2020 | 2019-12-10 17:19:37 UTC | |
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WLTP UN Regulation: Summary of ODB provisions
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WLTP-29-05/App.7 | 9 January | 9 Jan 2020 | 2020-01-09 10:06:06 UTC | |
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GTR 19: Amendment 3 summary
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WLTP-29-05/App.5 | 9 January | 9 Jan 2020 | 2020-01-09 10:02:27 UTC | |
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WLTP Gear Shift Task Force: Status report on programming code development
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WLTP-29-05/App.3 | 9 January | 9 Jan 2020 | 2020-01-09 09:59:42 UTC | |
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GTR 15: Proposals for Annexes 1 and 2 in Amendment 6
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WLTP-29-05/App.2 | 9 January | 9 Jan 2020 | 2020-01-09 09:53:56 UTC | |
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WLTP UN Regulation Overview
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WLTP-29-05 | 9 January | 9 Jan 2020 | 2020-01-09 09:50:17 UTC | |
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WLTP UN Regulation: Appendix 03 for electrified vehicles
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- | 8 January | 8 Jan 2020 | 2020-01-08 21:08:35 UTC | |
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Agenda for the 31st WLTP EV subgroup session
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- | 8 January | 8 Jan 2020 | 2020-01-08 20:57:01 UTC | |
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WLTP UN Regulation: Inconsistency at expected number of cycles in CD mode for OVC-HEVs
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- | 8 January | 8 Jan 2020 | 2020-01-08 21:06:52 UTC | |
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WLTP UN Regulation: OVC-HEV test sequence proposal
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- | 8 January | 8 Jan 2020 | 2020-01-08 21:04:56 UTC | |
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WLTP UN Regulation: PEV-HEV drafting table V2
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- | 8 January | 8 Jan 2020 | 2020-01-08 21:03:09 UTC | |
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WLTP UN Regulation: Draft OBD provisions with tracked revisions
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- | 8 January | 8 Jan 2020 | 2020-01-08 20:17:37 UTC | |
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WLTP UN Regulation: Square bracket summary of the 00 and 01 series of amendments
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- | 8 January | 8 Jan 2020 | 2020-01-08 20:15:33 UTC | |
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WLTP UN Regulation: Informal document for the 01 series of amendments
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- | 8 January | 8 Jan 2020 | 2020-01-08 20:13:59 UTC | |
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WLTP UN Regulation: Informal document for the draft 00 series of amendments
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- | 8 January | 8 Jan 2020 | 2020-01-08 20:11:03 UTC | |
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Minutes of the 30th WLTP EV subgroup session
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WLTP-SG-EV-30-04 | 7 January | 7 Jan 2020 | 2020-01-09 16:02:13 UTC | |
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UN R0: GRPE ambassador's update on IWVTA
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GRPE-80-14 | 7 January | 7 Jan 2020 | 2020-01-07 17:47:50 UTC | |
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Current issues of ensuring human safety in process of vehicles operation
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GRPE-80-13 | 7 January | 7 Jan 2020 | 2020-01-07 17:45:00 UTC | |
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UN R96: Proposal to amend the 05 series of amendments
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GRPE-80-12 | 7 January | 7 Jan 2020 | 2020-01-07 17:40:33 UTC | |
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UN R24: Proposal to amend the 03 series of amendments
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GRPE-80-11 | 7 January | 7 Jan 2020 | 2020-01-07 17:36:50 UTC | |
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UN R83: Proposal to amend the 07 series of amendments
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GRPE-80-10 | 7 January | 7 Jan 2020 | 2020-01-07 17:29:56 UTC | |
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Invitation to the 8th Global RDE informal group session
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- | 6 January | 6 Jan 2020 | 2019-12-29 17:28:26 UTC | |
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Adopted report of the 31st EPPR informal group session
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EPPR-31-15/Rev.2 | 6 January | 6 Jan 2020 | 2019-12-04 21:05:19 UTC | |
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Adopted report of the 30th EPPR session (teleconference)
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EPPR-30-04/Rev.1 | 6 January | 6 Jan 2020 | 2019-10-29 16:29:43 UTC | |
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WLTP UN Regulation: 00 series of amendments NOVC-FCHV provisions
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- | 6 January | 6 Jan 2020 | 2020-01-08 21:00:42 UTC | |
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Informal meetings in conjunction with the GRPE (proper) session: schedule and rooms reservation
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GRPE-80-01/Rev.2 | 6 January | 6 Jan 2020 | 2019-12-02 11:22:54 UTC | |
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Minutes of the 27th WLTP informal group session
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WLTP-27-08/Rev.1 | 3 January | 3 Jan 2020 | 2019-09-18 14:03:23 UTC | |
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WLTP UN Regulation: Japan FE calculation process
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:14:29 UTC | |
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WLTP UN Regulation: Japan comments on draft durability family/deterioration factors provisions
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:12:03 UTC | |
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WLTP UN Regulation: Draft Annex B4-Road load (revision 1)
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:08:29 UTC | |
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WLTP UN Regulation: Draft bracket summary of the 00 and 01 series of amendments
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:06:13 UTC | |
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WLTP UN Regulation: Draft informal document for the 01 series of amendments
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:04:45 UTC | |
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WLTP UN Regulation: Draft informal document for the 00 series of amendments
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- | 2 January | 2 Jan 2020 | 2020-01-09 12:03:02 UTC | |
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WLTP UN Regulation: commented draft of OBD provisions
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- | 2 January | 2 Jan 2020 | 2020-01-09 11:51:08 UTC | |
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WLTP UN Regulation: Japan comments on RMSSE drive trace indices
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- | 2 January | 2 Jan 2020 | 2020-01-09 11:18:40 UTC | |
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WLTP UN Regulation: Japan comments on draft 00 series of amendments
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- | 2 January | 2 Jan 2020 | 2020-01-09 11:08:48 UTC | |
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WLTP UN Regulation: 00 series of amendments-road load
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- | 2 January | 2 Jan 2020 | 2020-01-09 10:55:50 UTC | |
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Invitation to the 29th WLTP informal group session
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WLTP-29-01 | 29 December | 29 Dec 2019 | 2019-12-29 17:33:56 UTC | |
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Status of the DETA system deployment
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GRPE-80-09 | 26 December | 26 Dec 2019 | 2019-12-26 11:41:03 UTC | |
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UN R83: Revisions to document GRPE/2020/5
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GRPE-80-08 | 26 December | 26 Dec 2019 | 2019-12-26 11:26:24 UTC | |
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UN R83: Revisions to document GRPE/2020/2
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GRPE-80-07 | 26 December | 26 Dec 2019 | 2019-12-26 11:03:31 UTC | |
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GRPE emission items list
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GRPE-80-04/Rev.1 | 26 December | 26 Dec 2019 | 2019-06-16 12:34:10 UTC | |
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General information for the 80th GRPE session
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GRPE-80-02 | 24 December | 24 Dec 2019 | 2019-12-26 10:27:23 UTC |
Calendar of Upcoming Meetings
Related Working Groups
Regulations & Programs
| NEPE | NEPE | WP.29 Discussion Topics | Topic | 7 | |
| Resolution 0002 | MR 2: VPSD | WP.29 Resolutions | Resolution | 5 | |
| L-vehicle Pollution Control Durability | L-vehicle Pollution Control Durability | WP.29 Regulation Development | Program | 6 | |
| Motorcycle Propulsion Unit Performance | Motorcycle Propulsion Unit Performance | WP.29 Regulation Development | Program | 6 | |
| GTR 0018 | GTR No. 18 L-OBD | Global Technical Regulations | GTR | 2 | |
| GTR 0017 | GTR No. 17 Motorcycle Evaporative Emissions | Global Technical Regulations | GTR | 2 | |
| Resolution 0003 | MR 3: VIAQ | WP.29 Resolutions | Resolution | 5 | |
| Electric Vehicles & the Environment | Electric Vehicles & the Environment | WP.29 Regulation Development | Program | 6 | |
| PMP | PMP | WP.29 Regulation Development | Program | 6 | |
| Heavy-duty Hybrids (HDH) | Heavy-duty Hybrids (HDH) | WP.29 Regulation Development | Program | 6 | |
| GTR 0002 | GTR No. 2 WMTC | Global Technical Regulations | GTR | 2 | |
| GTR 0004 | GTR No. 4 WHDC | Global Technical Regulations | GTR | 2 | |
| GTR 0005 | GTR No. 5 OBD | Global Technical Regulations | GTR | 2 | |
| GTR 0011 | GTR No. 11 NRMM Emissions | Global Technical Regulations | GTR | 2 | |
| Heavy-duty Hybrids (HDH) | Heavy-duty Hybrids (HDH) | WP.29 Regulation Development | Program | 6 | |
| MACTP | MACTP | WP.29 Regulation Development | Program | 6 | |
| GTR 0015 | GTR No. 15 WLTP | Global Technical Regulations | GTR | 2 | |
| UNR 0024 | UN R24 Diesel Engine Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0040 | UN R40 Motorcycle Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0049 | UN R49 Diesel/CNG/LNG Engine Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0083 | UN R83 Motor Vehicle Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0084 | UN R84 Fuel Consumption Measurement | UN(ECE) Regulations | UNR | 1 | |
| UNR 0085 | UN R85 Net Power Measurement | UN(ECE) Regulations | UNR | 1 | |
| UNR 0096 | UN R96 NRMM Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0101 | UN R101 CO2 Emissions/Fuel Consumption | UN(ECE) Regulations | UNR | 1 | |
| UNR 0103 | UN R103 Replacement Catalytic Converters | UN(ECE) Regulations | UNR | 1 | |
| UNR 0115 | UN R115 LPG/CNG Retrofit Systems | UN(ECE) Regulations | UNR | 1 | |
| UNR 0120 | UN R120 NRMM Net Power/Fuel Consumption | UN(ECE) Regulations | UNR | 1 | |
| UNR 0132 | UN R132 Retrofit Emissions | UN(ECE) Regulations | UNR | 1 | |
| EFV | EFV | WP.29 Discussion Topics | Topic | 7 | |
| Fuel Quality | Fuel Quality | WP.29 Regulation Development | Program | 6 | |
| GTR 0010 | GTR No. 10 OCE | Global Technical Regulations | GTR | 2 | |
| UNR 0143 | UN R143 HD Dual Fuel Retrofit Systems | UN(ECE) Regulations | UNR | 1 | |
| REESS | REESS | WP.29 Regulation Development | Program | 6 | |
| Rule 0001 | UN Rule No. 1 Environmental Protection | UN Rules (Vehcle Inspection) | Rule | 3 | |
| UNR 0015 | UN R15 Emission of Gaseous Pollutants | UN(ECE) Regulations | UNR | 1 | |
| UNR 0047 | UN R47 Moped Emissions | UN(ECE) Regulations | UNR | 1 | |
| UNR 0133 | UN R133 Vehicle Recyclability | UN(ECE) Regulations | UNR | 1 | |
| WLTP (UNR) | WLTP (UNR) | WP.29 Regulation Development | Program | 6 | |
| GTR 0019 | GTR No. 19 Evaporative emissions | Global Technical Regulations | GTR | 2 | |
| UNR 0068 | UN R68 Maximum Speed Measurement | UN(ECE) Regulations | UNR | 1 | |
| Light Vehicle OBD | Light Vehicle OBD | WP.29 Discussion Topics | Topic | 7 | |
| Global RDE | Global RDE | WP.29 Regulation Development | Program | 6 | |
| HD Fuel Efficiency Measurement | HD Fuel Efficiency Measurement | WP.29 Discussion Topics | Topic | 7 | |
| Motorcycle Max Power | Motorcycle Max Power | WP.29 Regulation Development | Program | 6 | |
| WLTP Durability | WLTP Durability | WP.29 Regulation Development | Program | 6 |