The big change came in January 2013 after a big court judgment. Adding fees, though, is still illegal in some states: https://www.creditcards.com/credit-card-news/business-surcha...
Made me wonder about the stores/restaurants I frequent here that do charge, apparently they're still ok to do so after 2015(link from the comments in your linked post): https://oag.ca.gov/consumers/general/credit-card-surcharges
The big change came in January 2013 after a big court judgment. Adding fees, though, is still illegal in some states: https://www.creditcards.com/credit-card-news/business-surcha...