Home / Standards / GB/T 46531-2025 GB/T 46531-2025 Active Carbon dioxide emission accounting methodology for commercial road and waterway transport vehicles 公路水路营业性运输工具碳排放核算方法 Standard Type GBT ICS 13.020 CCS Z04 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 交通运输部 Drafting Unit N/A