49. GRSP noted that Mr. L. Martinez had been appointed Chair of the IWG on the harmonization of specifications of the 3-D H point machine (ECE/TRANS/WP.29/1126, para.  145). Experts from GRSP were invited to contribute to the activity of the IWG to solve, as soon as possible, this relevant issue which involved a number of UN regulations under the 1958 and 1998 Agreements. GRSP agreed to resume discussion on this matter at its May 2017 session and asked to be informed about the work progress of the IWG.