Greg, CSA does testing to Canadian and/or US Standards depending on what the client wants.
Here is what the marks look like if the device is approved for use in just Canada or in both countries.
http://www.csa-international.org/certification_marks/marks_for_canada/http://www.csa-international.org/certification_marks/marks_for_us/The same applies with the UL and cUL listing mark where the cUL means approval to Canadian Standards.
http://www.ul.com/global/eng/pages/corporate/aboutul/ulmarks/mark/#north