"Official travel guide to Canada"
Tips For Travelers To Canada
Prepared by the U.S. State Department, this site contains detailed information for tourists and business travelers.
Travel Documents for Crossing the Border
Produced by the Canada Border Services Agency.
Information on destinations, entry & visa requirements, tax refunds, and business travel.
Western Hemisphere Travel Initiative: The Basics
"The Western Hemisphere Travel Initiative (WHTI) requires all citizens of the United States, Canada, Mexico, and Bermuda to have a passport or other accepted document that establishes the bearer’s identity and nationality to enter or re‑enter the United States from within the Western Hemisphere."