34. On behalf of the Chair of GRRF, the representative of the United Kingdom informed WP.29 about the results of GRRF during its eighty-first session (for more details see the report of the session ECE/TRANS/WP.29/GRRF/81).

35. Speaking for the GRRF chair, the representative of the United Kingdom sought the endorsement of WP.29 on the establishment of an IWG dealing with Agricultural Coupling.

36. WP.29 approved the establishment of an IWG on Agricultural Coupling and requested GRRF to prepare the corresponding terms of reference.

37. The representative of the United Kingdom reported that GRRF completed its work related to IWVTA and therefore adopted amendments to Regulations Nos. 13-H and 64. He added that GRRF drew the attention of WP.29 to countries referring to Regulations Nos. 13-H and 64 to mandate Brake Assist Systems (BAS), Electronic Stability Control (ESC) and Tyre Pressure Monitoring Systems (TPMS) and that they would have until 1 September 2018 to refer to the corresponding newly established Regulations.

38. The representative of the United Kingdom informed the World Forum about a discussion that took place at GRRF in the context of IWVTA (WP.29-168-15) and, separately, on the issue of the performance of automotive systems in conditions other than those tested according to the regulated test procedures. He added that there are inherent risks that some systems, especially those relying on software (e.g. TPMS and AEBS) could be designed to work only in the limited conditions corresponding to those tested rather than in all the relevant driving conditions. He sought guidance from WP.29 and concluded by proposing that the new regulation on TPMS systems could serve as a case study to inform future consideration by the working party. The representative of the European Union supported such an approach.

39. WP.29 agreed to refer the document WP.29-168-15 to all GRs to receive feedback and agreed that, in the meantime, GRRF continues to address this matter.