Since January 23, 2007, the Western Hemisphere Travel Initiative (WHTI) came into effect for air travel to the United States. WHTI is an American endeavor that establishes new requirements for documentation to enter the US. All travelers entering the United States must now have the appropriate documentation which includes:
The NEXUS program offers a simplified and expedited clearance process to pre-approved, low-risk travelers.
Further information can be found at http://www.ppt.gc.ca/planification/local.aspx?lang=eng®ion=USA
