20 December 2010 Proposal for corrigenda to GTR No. 4 (WHDC) (OICA) GRPE-61-04	GRPE-61-04	2010-12-20
4 August 2010 Proposal for the development of either amendments to gtr No. 4 adding a new emission test procedure for heavy-duty hybrid vehicles (HD-HV’S) or a new gtr (EU) WP.29/2010/142	WP.29/2010/142	2010-08-04
30 July 2010 Invitation to the 3rd meeting of the GRPE Informal Group on Heavy Duty Hybrids HDH-03-01	HDH-03-01	2010-07-30
6 October 2010 Draft agenda for the 3rd HDH informal group session HDH-03-02	HDH-03-02	2010-10-06
21 October 2010 Developmental Status of HEV Model without “Intellectual Property of Developer" (JASIC) HDH-03-03	HDH-03-03	2010-10-21
21 October 2010 Engine-Base Emissions Regulation using HILS for Commercial Hybrid Vehicles (JASIC) HDH-03-04	HDH-03-04	2010-10-21
25 October 2010 Cummins Hybrid Certification White Paper Overview (Cummins) HDH-03-06	HDH-03-06	2010-10-25
26 October 2010 Considerations in the development of an HD hybrid certification HDH-03-07	HDH-03-07	2010-10-26
29 October 2010 Conclusions from the 3rd HDH informal group session HDH-03-08	HDH-03-08	2010-10-29
29 October 2010 Regulation of emissions from commercial hybrid vehicles (USA and Cummins) HDH-03-09	HDH-03-09	2010-10-29
2 June 2010 Draft agenda for the 2nd HDH informal group session (EU) HDH-02-01	HDH-02-01	2010-06-02
2 June 2010 Proposal for the Terms of Reference of the Informal Group on Heavy-Duty Hybrids HDH-02-02	HDH-02-02	2010-06-02
2 June 2010 Proposal for an emissions test procedure for heavy duty hybrid vehicles (EU) HDH-02-03	HDH-02-03	2010-06-02
2 June 2010 Minutes of the 1st HDH informal group meeting HDH-02-04	HDH-02-04	2010-06-02
3 June 2010 NL proposal for modifications of the draft TOR (HDH-02-02) and draft text of the development of a test procedure for HD hybrid vehicles (Netherlands) HDH-02-05	HDH-02-05	2010-06-03
4 June 2010 Comments on the Terms of Reference (US EPA and USA) HDH-02-06	HDH-02-06	2010-06-04
27 April 2010 Draft agenda for the 1st HDH informal group session HDH-01-01	HDH-01-01	2010-04-27
7 June 2010 Development of Emission Test Procedure for Heavy-Duty Hybrids in China (CATARC and CRAES) HDH-02-07	HDH-02-07	2010-06-07
30 July 2010 Minutes of the 2nd HDH informal group meeting HDH-02-08	HDH-02-08	2010-07-30
6 May 2010 Proposal for the Terms of Reference of the Informal Group on HDH HDH-01-02	HDH-01-02	2010-05-06
17 May 2010 Proposal for an emissions test procedure for heavy duty hybrid vehicles (EU) HDH-01-03	HDH-01-03	2010-05-17
18 May 2010 Hybrid vehicles: Hardware in the loop simulation (OICA) HDH-01-04	HDH-01-04	2010-05-18