18. GRSG considered ECE/TRANS/WP.29/GRSG/2022/21, aimed at moving in part II of the UN Regulation the requirement to prevent the installation of the filling unit under the body of M1 vehicles. GRSG adopted ECE/TRANS/WP.29/GRSG/2022/21, not amended. The secretariat was requested to submit the proposal as draft Supplement 3 to 03 series of amendments and for Supplement 2 to the 04 series of amendments to UN Regulation No. 67, for consideration and vote at the March 2023 sessions of WP.29 and AC.1.