California this month became the first state to require credit card companies to create a unique four-digit code for stores selling firearms. And on the same day the law took effect in California, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (FOX40.COM) — California is taking more ...

A merchant category code — or an MCC — is a four-digit number used by credit card companies to classify businesses for payments, taxation and rewards purposes. MCCs affect the interchange rates and ...

Mastercard, Visa, and American Express are reportedly preparing to equip California firearms and ammunition retailers with a merchant code that would track gun purchases. This comes as a new state law ...