Originally Posted by
Dread Pirate Jeff
Context: As a US citizen, is a work visa necessary all the time in Canada? I mean, if I fly into CA for a day of meetings, is a Visa necessary for that? (With the caveat that YMMV for other countries).
A "work" visa may be required if you are going to "work".
A business visa is NOT required if you are going for "business", for stays of up to 180 days.
"Business" and "work" are very distinct terms when related to immigration. In a very (very!) simplistic sense, if you are not being paid locally, then you are in the country for "business".