The only thing I can quickly find :
http://www.xml.gov.hk/download/common_schema.htm

But the HK Immigration Department would be the ones to ask.
http://www.immd.gov.hk/ehtml/contactus.htm

NickHK

"new.microsoft.com" wrote in message
...
Do anyone know to validating rule for checking the Hong Kong Identity Card
no, i.e. checking the input check digit is right or not

Thanks