4. The expert from Germany, on behalf of the Chair of the Informal Working Group (IWG) on the UN Global Technical Regulation (UN GTR) No. 7 – Phase 2, informed GRSP about the work progress of the IWG (GRSP-56-04). He clarified that the IWG had defined a short list of candidate injury criteria to be used in the test of the UN GTR Phase 2. He added that the test pulse had been defined and that good repeatability and reproducibility of the biomechanical rear impact dummy (bioRID) had been achieved. He concluded that a full set of drawings and specifications of the dummy would be incorporated in the draft Addendum 1 of the Mutual Resolution No. 1 (M.R.1), along with the draft amendment to the UN GTR by the December 2015 session of GRSP. The expert from Japan added the presentation of the expert from Germany by introducing the status report of the IWG (GRSP-56-05).