http://www.uscis.gov/files/article/M-476.pdf"Note that unless a traffic incident
was alcohol or drug related, you do not need
to submit documentation for traffic fines and
incidents that did not involve an actual arrest
if the only penalty was a fine of less than
$500 and/or points on your driver’s license."
申请人不需要提供文件但需要DISCLOSE traffic违章事件。
但有的面试官员据说坚持要看，所以自己的罚款收据什么的
最好留着。如果没留同时法庭也不提供了，那也不是什么大事。