4. UN Regulation No. 138 (Quiet Road Transport Vehicles)
10. GRBP recalled the status report of the IWG RD-ASEP Subgroup on UN Regulations Nos. 51 and 138 (GRBP-82-35) and the ensuing discussion (paragraphs 5-7 above).
IWG RD-ASEP Subgroup on UN Regulations Nos. 51 and 138): Status report