10. The expert from ETRTO introduced ECE/TRANS/WP.29/GRBP/2021/4. GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the June 2021 sessions of WP.29 and AC.1 as a draft Supplement to the 02 series of amendments to UN Regulation No. 30.

11. The expert from France proposed a new definition for the radial structure (GRBP-73-20-Rev.1). The expert from ETRTO made a study reservation. GRBP invited the expert from France to prepare, in cooperation with ETRTO, a new working document for the next session.