62. The expert from OICA, ambassador of GRPE at IWVTA, introduced GRPE-79-25 showing the outcome of a study (GRPE-79-26) performed by a type approval authority and technical service from United Kingdom of Great Britain and Northern Ireland on the compliance of UN Regulations with the schedule 4 of the 1958 Agreement, subjected to enter into force by the end of 2019. The study highlighted that GRPE-related UN Regulations had no conflict with schedule 4 of the 1958 Agreement. GRPE acknowledged this outcome and asked the ambassador to report on this issue at forthcoming event of IWVTA.

63. The ambassador of GRPE at IWVTA also reiterated the open questions on the inclusion of GRPE-related UN Regulations into UN Regulation No. 0. He detailed the five remaining issues regarding UN Regulations Nos. 24, 49, 133 and forthcoming UN Regulations on WLTP and RDE. GRPE did not take any decision and recalled what had been discussed during the last session of GRPE in January 2019 (ECE/TRANS/WP.29/GRPE/78, paras. 59-61).