Understand the MCC 5723 situation
The International Organization for Standardization approved MCC 5723 for firearms and ammunition retailers in September 2022. Visa, Mastercard, American Express and Discover paused their rollout on 9 March 2023, citing legal uncertainty. California's AB 1587 now requires the code to be assigned, with acquirers given until 1 May 2025, and New York and Colorado passed similar laws. On the other side, many states have banned its use, 16 by October 2024. Ask your acquirer how it codes merchants in each of your states.
