Os cidadãos canadenses geralmente podem entrar nos EUA sem visto. Exceções em que os canadenses são obrigados a ter um visto dependem da finalidade para a qual estão entrando, ou em seu histórico criminal e de imigração, não no local de onde estão viajando nem na jurisdição onde residem.
In most circumstances, Canadian citizens do not require visitor, business, transit or other visas to enter the United States, either from Canada or from other countries. There are, however, some exceptions to this situation. These exceptions (and the visa category they require) include:
Treaty traders (requires E Visa);
foreign citizen fiancé(e) (K-1 Visa), as well as the fiancé(e)'s children (K-2 Visa);,
- A U.S. citizen's foreign citizen spouse traveling to reside in the U.S. while awaiting final completion of the process of immigration (K-3 Visa), as well as the spouse's children (K-4 Visa);
- Spouses of lawful permanent residents (V-1 Visas), as well as the spouse's children who are traveling to reside in the U.S. while awaiting final completion of the process of immigration (V-2 Visas);
- Non-immigrants travelling to the United States for work (Non-Immigrant Visas), including:
- Canadian government officials (A Visas), if entering the U.S. for temporary or permanent assignment;
- Officials and employees of international organizations (G Visas), if entering the U.S. for temporary or permanent assignment; and
- NATO officials, representatives, and employees, only if they are being assigned to the U.S. (as opposed to an official trip).
Furthermore, Canadians who have been removed from the United States or who have a criminal record, including for driving under the influence, will need to follow a separate set of procedures to enter the country.
Fonte: link