GAR | GRPE/79/Add.1

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Document Title	GTR 2: Amendment 4 as approved by GRPE
Reference Number	GRPE/79/Add.1
Date	16 Jul 2019
Summary	Proposal to further harmonize test procedures for two-wheeled vehicles equipped with conventional combustion engine technology, including restructuring to dedicate separate sections to test types I (tailpipe emission after cold start), II (idle / free acceleration emissions) and VII (energy efficiency). The amendment aligns the GTR with technological progress, including changes related to reference fuels temperature conversion forced induction systems (turbo/super-chargers) treatment of open/closed systems test room humidity CO₂ tolerance, and reference mass of the vehicle.
Rulemaking Area(s)	GTR No. 2 WMTC
Proposal Status	Superseded
Meeting(s)	GRPE \| Session 79 \| 21-24 May 2019 8. (b) UN Global Technical Regulations Nos. 2 (World-wide Motorcycle emissions Test Cycle (WMTC)), 17 (Crankcase and evaporative emissions of L-category vehicles) and 18 (On-Board Diagnostic (OBD) systems for L-category vehicles)
Related Documents
	GRPE/2019/12	GTR 2: Proposal for Amendment 4 (superseded)
	WP.29/2019/121	GTR 2: Proposal for Amendment 4
Downloads
UNECE server	.pdf format	.docx format
Excerpts from session reports related to this document
GRPE \| Session 79 \| 21-24 May 2019		48. The Chair of IWG on Environmental and Propulsion Performance Requirements for L-category vehicles (EPPR) introduced ECE/TRANS/WP.29/GRPE/2019/12, GRPE-79-21-Rev.1 and GRPE-79-22 as a draft proposal for Amendment 4 to UN GTR No. 2. 49. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/12 as amended by GRPE-79-21-Rev.1 as reflected in Addendum 1 to this report as draft Amendment 4 to UN GTR No. 2. GRPE also adopted the technical report (GRPE-79-22) as reproduced in Annex VI of the session report. GRPE requested the secretariat to submit Addendum 1 and Annex VI to WP.29 and AC.3 for consideration and vote at their November 2019 sessions.