5. The expert from Belgium introduced ECE/TRANS/WP.29/GRSG/2019/9 and GRSG-116-44, proposing to amend the requirements in Annex 11 of UN Regulation No. 107 on the minimum mass for the front axle of articulated vehicles of Class I. The expert from the United Kingdom raised study reservations on braking performance and braking stability. GRSG noted that UN Regulation No. 13 would be applied in any case and supported the proposal in principle. The expert from Belgium volunteered to provide more detailed information on braking performances for the next GRSG session. GRSG decided to adopt ECE/TRANS/WP.29/GRSG/2019/9 and requested the secretariat to submit it to WP.29 and the administrative Committee AC.1 of the 1958 Agreement as draft Supplement 8 to the 06 series of amendments, draft Supplement 3 to the 07 series of amendments and draft Supplement 2 to the 08 series of amendments to UN Regulation No. 107 for consideration at their November 2019 sessions, subject to a final review by GRSG at its October 2019 session.