28. The Chair of the informal group on REC reported on the progress made (GRPE-65-38), focusing in particular on the draft regulation on REC aimed to illustrate the state of play of the informal Group on REC (GRPE-65-18). Having reported that the draft is almost finalized, he expressed his confidence about the possibility to find a solution to the few outstanding issues in the next REC meeting. On NOX emission limits, he reported that, notwithstanding an agreement on a 60 per cent reduction when the REC system is evaluated over the World-wide harmonized Heavy duty Test Cycle, there is still discussion between 60 per cent and 70 per cent for the limit concerning non-road mobile machinery. On direct NO2 emissions, he explained that the definition of the maximum increase compared to the level recorded when no REC is fitted is still open (20 per cent versus 30 per cent).

29. The expert from Germany clarified the readiness to compromise on a 60 per cent reduction on NOX emissions, but he also underlined the need to stick to the 20 per cent maximum increase for NO2. In order to assure the possibility of an informed decision, the expert from the EC encouraged all Contracting Parties to contribute to the discussion with the provision of technical information justifying their positions.

30. Willing to propose text offering solutions based on the national experience, the expert from France pointed out the need to address properly issues related with the conformity of production (stressing the importance to make sure that the retrofitter is responsible for the installation of the equipment) and in-service check. Sweden supported this comment and also offered assistance based on lessons being learned in the national context. The Chair of the REC group welcomed these proposals.

31. GRPE requested the REC informal group to submit an updated version of the draft UN Regulation, so that the secretariat can prepare an official document for the next GRPE session, in June 2013. GRPE also noted the intention of the informal group to submit an informal proposal for an amendment 01 at the same time. The next REC meeting will take place in Bern (Switzerland) on 19 and 20 February 2013. The group should also meet in conjunction with the next GRPE session, in June 2013.