Can I sell a CSA approved product in the US at retail or over the internet?
CSA is an NRTL for US testing. Often products will be tested for both Canada and the USA, and products which have passed these test will bear the CSA mark with some US indication (cCSAus, CSAus, CSA/NRTL, etc.) - for example:



A CSA mark without a US indication is technically not valid for the US, even though the standards are largely identical between the countries. End users would get in trouble if the units you're selling cause any damage, with the onus on them to have had special inspection from UL (or some other NRTL) in order to get insurance payouts.