california smog check History
 

here is a link some california residents or someone who wants to buy a california car may find useful, it is a web site for the BAR (Bureau of Automotive Repair), it will tell you emissions test history for a particular vehicle either by vin or licence plate, i recommend you check both since the plate can be changed. it will tell you if the vehicle has ever failed a standard or pre smog check in california only.

Smog Check History