66. The expert from the Russian Federation introduced ECE/TRANS/WP.29/GRVA/2019/25, proposing amendments to UN Regulation No. 90 on provisions on the approval making and the approval number. The expert from CLEPA thanked the expert from the Russian Federation for having developed an elegant and creative solution to the marking requirement. GRVA supported the proposal. GRVA also agreed to identify the provisions for Category L6 and L7 vehicles as being identical to the M1 and N1 provisions (as noted in GRVA-04-54). GRVA agreed that the Unique Identifier should not be used as an alternative to the marking provisions in the Regulation. GRVA asked the secretariat to add provisions on the marking size for small parts that could not accommodate the size provision in the Regulation. GRVA requested the secretariat to provide a consolidated text to WP.29 and AC.1 for review and vote at their March 2020 sessions.