In what states is it illegal to charge credit card fees?

Can you please elaborate on the legality of charging credit card fees in different states across the United States? Are there specific states where merchants are prohibited from imposing these fees on their customers, and if so, what are the reasons behind these regulations? Are there any federal laws that override these state-specific regulations, or do the states have autonomy in determining their own policies regarding credit card fees? Additionally, how does this impact the overall cost of goods and services for consumers, and what are the potential consequences for businesses that violate these regulations?