Oooops! I had a stupid moment–sorry about that. :flush:
Here’s the info you ARE looking for…
http://cbp.gov/xp/cgov/travel/id_visa/req_canada_mexico.xml
Entry of Citizens of Canada
Citizens of Canada are exempt from the visa and passport requirement of Immigration and Nationality Act (section 212(a)(7).) To enter the United States, a Canadian citizen must be able to establish both identity and citizenship. Documents that may establish citizenship are:
Birth certificate
Citizenship certificate
Passport.
Although a CBP officer may accept an oral declaration of citizenship, it is recommended that a Canadian citizen carry a document that establishes citizenship. Under current procedures, all travelers may be required to present photo-identification.