19 July 2011 Invitation to the 7th HDH Informal Group session HDH-07-01	HDH-07-01	2011-07-19
22 September 2011 Draft agenda for the 7th HDH Informal Group session HDH-07-02	HDH-07-02	2011-09-22
22 September 2011 Minutes of the IFA visit to Japan within the framework of the HDH Project (IFA) HDH-07-03	HDH-07-03	2011-09-22
13 October 2011 HDH Research Project status report: IFA/TU Vienna (IFA and TU Wien) HDH-07-04	HDH-07-04	2011-10-13
13 October 2011 Methodology for Certifying HD Hybrids based on HILS (IVT and TU Graz) HDH-07-05	HDH-07-05	2011-10-13
13 October 2011 Emissions and CO2 Test Procedure for HD Hybrid Vehicles (Chalmers) HDH-07-06	HDH-07-06	2011-10-13
13 October 2011 Feasibility study for chassis dynamometer testing procedure for HD hybrids (India) HDH-07-07	HDH-07-07	2011-10-13
5 December 2011 Progress report of the HD Hybrid Emissions (HDH) Informal Group HDH-07-08	HDH-07-08	2011-12-05
5 December 2011 EPA Heavy‐Duty GHG Overview and Hybrid System Testing (US EPA) HDH-07-09	HDH-07-09	2011-12-05
5 December 2011 Japan's understanding of WHTC application for HILS in document HDH-07-05 (Japan) HDH-07-10	HDH-07-10	2011-12-05
5 December 2011 Clean Automotive Technology: HHV Component Information (US EPA) HDH-07-11	HDH-07-11	2011-12-05
16 December 2011 Minutes of the 7th HDH group meeting HDH-07-12	HDH-07-12	2011-12-16