In addition to the above legal penalties, casinos will confiscate the fake chips, seize any winnings associated with them and ban the individual from the premises permanently. Casinos also employ advanced technologies and proprietary manufacturing techniques to safeguard against counterfeit chips.

Casinos operate under a myriad of rules from both state and federal governments. They are one of the most regulated businesses in the US. Sometimes, when all those regulations aren't met, the casino may refuse to pay you, at least momentarily.