Home / Standards / GB/T 46252-2025 GB/T 46252-2025 Active Specification for identification of high-impact sections of road icing 道路结冰高影响路段排查规范 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 中国气象局 Drafting Unit N/A