50. The expert from AVERE introduced ECE/TRANS/WP.29/GRVA/2021/10 proposing revised amendments to the ACSF of Category C provisions (time range during which the lane change manoeuvre is initiated) in UN Regulation No. 79. The experts from UK, European Commissions and Japan supported the proposal. The expert from Korea supported the proposal and indicated that a longer time than the one proposed would be preferable. The expert from the Netherlands opposed to the proposal for the same reasons as the one expressed in September 2020. The expert from Norway also opposed to the proposal. He wondered about the possible benefits of stretching the limits. The expert from France supported the proposal but pointed out inconsistencies in the drawing compared to the provisions in the text. The expert from OICA supported the proposal. The expert from AVERE provided answers to the statements and questions raised. The Chair asked if all doubts were cleared. The experts from the Netherlands, Sweden, Germany and Finland still had reservations to the proposal but agreed that it could be further discussed at a task force meeting.