Home / Standards / GB/T 917-2017 GB/T 917-2017 Active Mark rules of highway route and number of national trunk highway 公路路线标识规则和国道编号 Standard Type GBT ICS 03.220.20 CCS A24 Status 现行 Issue Date 2017-09-07 Implementation 2017-09-07 Responsible Dept 国家标准委 Drafting Unit N/A