Cal. Fin. Code § 110001

(a) By July 1, 2024, a payment card network shall make the merchant category code for firearms and ammunition businesses established by the International Organization for Standardization on September 9, 2022, available for merchant acquirers that provide payment services for firearms merchants. (b) Beginning May 1, 2025, a merchant acquirer shall assign to a firearms merchant the merchant category code for firearms and ammunition businesses established by the International Organization for Standardization on September 9, 2022. (c) A waiver of a provision of this division is contrary to public policy and is void and unenforceable. (Added by Stats. 2023, Ch. 247, Sec. 1. (AB 1587) Effective January 1, 2024.)