在美国签证的话

flystUID：2122917

如果在美国签证的话，大概要多少天？需要的材料一样吗？还有我之前在美国呆了一年了需不需要在美国的无犯罪证明？如果有人知道的话请告诉我，谢谢！

hao8165UID：2472813

You can go to Immigration Canada website to find more information.  http://www.cic.gc.ca

For most places in the US with a Canadian Consulate, if you apply for a study permit in person, it may be issued on the same day.  However, I do think you need to do a criminal check for the US part, since you've been there for more than a year.  The criminal check part can be lengthy and do it ahead of time.  You have to go to your local police office to get fingerprinted, and send the card to the FBI criminal check bureau.  It only costs around $20, but it may take up to a month to process your request.

flystUID：2122917

好详细，谢谢了！