18. The expert from Germany recalled the discussion at the previous session of GRSG on ECE/TRANS/WP.29/GRSG/2011/19 proposing to introduce, into UN Regulation No. 58, more stringent requirements for rear underrun protection devices. He reported on the outcome of the ad hoc expert meeting held in Bonn on 23 January 2012. As a result, he introduced GRSG-102-26 superseding ECE/TRANS/WP.29/GRSG/2011/19. The expert from OICA presented GRSG-102-32-Rev.1 containing preliminary comments to GRSG-102-26. GRSG welcomed the proposals and noted a number of comments, especially on the need to clarify the scope of the proposed amendments. The expert from France raised concerns on the interpretation of the text of the Regulation. He underlined the need to clarify the current provisions of the measurement method (static test). The expert from Japan introduced GRSG-102-34 commenting the proposal tabled by OICA.

19. Following the discussion, GRSG invited the interested experts to discuss, at a further meeting, the open issues taking into account the comments received. GRSG agreed to resume consideration on this subject at its next session in October 2012 on the basis of a revised proposal to be submitted by Germany as the outcome of the ad hoc expert group meeting. The expert from Germany volunteered to organize that event and invited all GRSG experts to attend the meeting.

20. The expert from Japan presented ECE/TRANS/WP.29/GRSG/2012/5 clarifying the requirements on rear underrun protection devices. GRSG noted a number of amendments (GRSG-102-35) and adopted the proposal as reproduced in Annex IV to this report. GRSG requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2012 sessions, as draft Supplement 3 to the 02 series of amendments to UN Regulation No. 58.