90. The representative of the United Kingdom reported on the work progress of the IWG on Phase 2 of UN GTR No. 7. He informed AC.3 that the validation of Biofidelic Rear Impact Dummy II (BioRID II) was well advanced and that the IWG would submit to the May 2014 session of GRSP, an informal document complementing the official proposal for amendments to the UN GTR. He clarified that GRSP was expected in December 2014 to recommend the amendments for consideration by AC.3 at its June 2015 session. He added that a proposal for Addendum 1 to the Mutual Resolution No. 1 (M.R.1) would also be submitted to that session of GRSP to incorporate a complete set of drawings and specifications of BioRID II. He finally thanked the manufacturer of the dummy for the close cooperation, the support in delivering all the specifications mentioned above and the removal of restrictions for their use.