6. GRSP noted that the Administrative Committee of the 1998 Agreement (AC.3) at its March 2014 referred WP.29-162-03 to GRSP, concerning the Injury Assessment References Values (IARVs) for the flexible lower legform (FlexPLI) to bumper test, of the proposal for amendments to the UN GTR. It was also noted that referring this document back to GRSP, the establishment of the UN GTR would be delayed until an agreement on the IARVs would be reached by GRSP (ECE/TRANS/WP.29/1108, paras. 91 and 92). Therefore, the expert of the United States of America introduced GRSP-55-36, suggesting to amend the preamble of the draft UN GTR to allow Contracting Parties to choose appropriate values based on their cost and benefit studies and the existing injury risk curves. He concluded that establishing premature values, without the research results would introduce risks of dis-harmonization. The expert from Germany, supported by the expert from OICA, argued that this approach would not be, however, the most favourable one for harmonization. He suggested to put the development of UN GTR No. 9 – Phase 2 on hold until the expert from the United States of America completed his research and to concentrate the work on the corresponding UN Regulation No. 127.

7. Finally, GRSP agreed to resume discussion at its December 2014 session, based on further research results and requested the secretariat to distribute GRSP-55-40, GRSP-54-33-Rev.2 (draft UN GTR) and GRSP-54-34-Rev.1 (draft final report of the IWG) with official symbols.