Download: WP.29/1146 from UNECE: .pdf format .docx format
Download: WP.29/1146/Add.1 from UNECE: .pdf format .docx format
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4.7.1. Proposal for Supplement 5 to the 03 series of amendments to UN Regulation No.24 (Visible pollutants, measurement of power of Compression Ignition engine (Diesel smoke))