Home / Standards / GB/T 17730-1999 GB/T 17730-1999 Abolished The rules of coding for main controlling point of arterial highway 国、省道主要控制点编码规则 Standard Type GBT ICS 35.240.60 CCS R07 Status 废止 Issue Date 1999-04-15 Implementation 1999-12-01 Responsible Dept 交通运输部 Drafting Unit N/A