請大家幫忙看看,I-90約打biometrics表格上的一段話

Disposition of arrest(s)
Appliant must bring certified or original evidence of disposition of any arrest/charge in or outside the U.S.Unless it is alcohol or drug related,you do not need to documentation for traffic incident that do not involve an arrest if the only penalty was a fine of less than $500 and or points on your driver's license.Failure to provide this imformation may result in your application being delayed or denied.

感覺是要帶國內的無犯罪公證,好象還要帶在美國的無犯罪公證,不知道我的理解對不對?可在美國要去哪裏辦無犯罪公證呢?

請各位大俠指點!謝謝了!