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4.7.5. Proposal for a Supplement 4 to the 13 series of amendments to UN Regulation No. 13 (Heavy Vehicle Braking)

ECE/TRANS/WP.29/GRVA/20, para. 97, based on GRVA-20-33.

WP.29/2025/10 | UN R13: Proposal for Supplement 4 to the 13 series of amendments