7. GRSP considered ECE/TRANS/WP.29/GRSP/2011/13 and GRSP-49-15 concerning the introduction of the flexible pedestrian legform (Flex-PLI) into the gtr. The expert from the United States of America made a presentation (GRSP-49-23) showing the outcome of a comparison research study conducted in his country between the Flex-PLI and the current lower legform. He concluded that additional research, testing and additional world fleet data is needed to address the injury criteria concerns and to justify the introduction of the Flex-PLI. The expert from Japan gave a presentation (GRSP-49-24), showing that the Flex-PLI and the current legform have a totally different structure and injury criteria. Therefore, he concluded that direct comparison between the two legforms would take misleading results. GRSP agreed that pending issues should be addressed by an informal group, co-chaired by Germany and Japan and aimed at finalizing proposals for the introduction of the Flex-PLI into the gtr and in the draft Regulation on pedestrian safety in the same time.

8. GRSP agreed to seek consent from WP.29 and the administrative Committee of the 1998 Agreement (AC.3) at its June 2011 session to mandate an informal group on the Flex- PLI. GRSP also noted the draft terms of reference of the informal group (GRSP-49-38) and agreed to refer to this group for finalization. Finally, it was agreed to resume consideration on this agenda item on the basis of a revised proposal (including ECE/TRANS/WP.29/GRSP/2011/13, GRSP-49-15 and possible amendments proposed by the informal group), if any.

8. The expert from Germany, Chair of the informal working group on UN GTR No. 9 Phase 2, introduced the terms of references and operating principles (GRSP-50-29) and the first progress report (GRSP-50-30) of the informal working group on UN GTR No. 9 Phase 2. GRSP noted that the main objective of the group should be the introduction of the flexible pedestrian legform (Flex-PLI) into the UN GTR and into the draft UN Regulation on pedestrian safety in the same time. He also asked GRSP experts to provide information on leg injuries to the informal working group. He finally informed GRSP about the intention of the informal working group to submit for consideration, to GRSP a draft proposal at its May 2013 session. GRSP adopted the terms of reference of the informal working group (contained in GRSP-50-29), as reproduced in Annex II to this report and agreed to seek the consent from WP.29 at its March 2012 session. GRSP also agreed to keep ECE/TRANS/WP.29/GRSP/2011/13 on the agenda of its future sessions, awaiting the outcome of the informal working group on UN GTR No. 9 Phase 2.

10. The expert from Germany, Chair of the informal working group on UN GTR No. 9 Phase 2, introduced the second progress report of the informal group (GRSP-51-25) and expressed his intention to submit it to the June 2012 session of WP.29. GRSP agreed to resume discussion on this agenda item at its December 2012 session, awaiting the outcome of the informal working group on UN GTR No. 9 Phase 2.