10. The Chair of the informal group on Retrofit Emission Control devices (REC) reported on the progress made by the group during its third meeting (GRPE-61-22). He listed the remaining issues still under discussion. He explained the group’s intention to cover, for the purpose of the type approval of REC, that such devices shall show compliance either with the specific limit values of an existing emission level or with the specific percentage of certain emission reduction. GRPE noted some preferences that for the type approval of REC the devices should comply with both criteria.

11. GRPE noted that the informal group’s intention to meet again in March 2011. The GRPE Chair invited the REC group to also meet in conjunction with the next session of GRPE in June 2011 (see para. 56 below).