Home / Standards / GB/T 20851.3-2007 GB/T 20851.3-2007 Abolished Electronic toll collection - Dedicated short range communication - Part 3: Application layer 电子收费 专用短程通信 第3部分：应用层 Standard Type GBT ICS 35.100.70 CCS L79 Status 废止 Issue Date 2007-03-19 Implementation 2007-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委