Home / Standards / GB/T 21379-2025 GB/T 21379-2025 Upcoming Classification and coding of the attribute of traffic management information—City road 交通管理信息属性分类与编码 城市道路 Standard Type GBT ICS 03.220.20 CCS R07 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A