Get your passport, credit or debit card ready, and read the help document. Canadian citizens don't need visas to study or participate in a student exchange program in the United States.If you have a DUI arrest or conviction on your record and need to enter Canada, call us now or fill out this form! 24 Hour Response Time! Among those exempted from this new requirement are U.S. citizens and travellers with a valid visa. Fill out your form(s) online and print it. All required supporting documents for the form(s). We provide services to Canadians visiting and living in the United States. Entry Rules Have Changed. Effective November 10, 2016, visa-exempt foreign nationals must have an eTA before they can board a flight to Canada.