5. The expert from the United Kingdom, on behalf of the Chair of the Informal Working Group (IWG) on GTR No. 7 – Phase 2, clarified that the IWG was following a more empirical approach to determine pass/fail criteria for the Bio Rear Impact Dummy (BioRID). He reported that the IWG expected to resume discussion at the beginning of 2017 and to finalize proposals by the end of 2017 on GTR No. 7 and on Addendum 1 to Mutual Resolution No. 1 (M.R.1) to incorporate Bio Rear Impact Dummy (BioRID) specifications. He concluded that an extension of the mandate of the IWG until December 2017 was needed to complete the final proposals. GRSP agreed to seek endorsement of this request at the March 2017 session of AC.3.