Home / Standards / GB/T 18731-2025 GB/T 18731-2025 Active Rules for locating arterial highway 干线公路定位规则 Standard Type GBT ICS 03.220.20 CCS R07 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 交通运输部 Drafting Unit N/A