8. The expert from the United States of America, Co-Chair of the IWG on the UN Global Technical Regulation (UN GTR) No. 13 – Phase 2, informed GRSP about the group’s progress. He introduced a draft report of its second meeting (GRSP-63-29), held in Torrance, United States of America from 5 to 7 February 2018. He explained that the meeting had received contributions from about sixty experts on the regulatory work including material compatibility, fuelling receptacle, long-term stress rupture of hydrogen storage systems and on updating the existing test procedure of the UN GTR. He added due to the large size of the IWG, that it was needed to create five Task Forces to address some specific technical items of Phase 2. He concluded that the Terms of Reference (ToR) of the IWG were submitted to the June 2018 session of AC.3 (ECE/TRANS/WP.29/2018/75) for endorsement and announced that the date of the next meetings of the IWG is scheduled from 24 to 26 June 2018, in Seoul followed by a meeting in October 2018 in Europe. The expert from OICA called for a higher participation of contracting parties from GRSP to the activities of the IWG.