25. The secretary of the informal group on HDH introduced GRPE-65-25 and GRPE-65-26, containing summaries of the eleventh and twelfth HDH meetings, information on the status of HDH work programme, as well as an updated roadmap and planning of the activities. He mentioned that driver models are completed, that thermal models for battery and electric motor are being completed, and that the power-take-off (PTO) work is excluded from the current programme. He explained that it was not possible to meet the original deadline to submit a final report, including the assessment of chassis dynamometer and power-pack testing (originally planned for the current GRPE session). Seeking GRPE approval, he proposed a submission of the final report, as well as an informal document with the draft UN GTR (including the assessment of chassis dynamometer and power-pack testing), to the GRPE session of January 2014. He stated that the draft UN GTR (which should be based on Hardware-in-the-Loop Simulation (HILS) and not on Software-in-the-Loop Simulation (SILS)) could then be submitted as an official document at the GRPE session of June 2014.

26. Following a request for additional information from the expert from the Netherlands on the evaluation of the HILS, the Chair and the secretary of the HDH group clarified that the issue will be addressed in the minutes of the thirteenth HDH meeting.

27. GRPE agreed with the revision of the time schedule and the submission of the UN GTR in June 2014. The next group meeting will take place in Sweden on 21 and 22 March 2013. The HDH group should also meet in conjunction with the next GRPE session, in June 2013.