(a) Except for those records kept during the regular course of a criminal investigation and prosecution, or as otherwise required by law, a government entity, or an official, employee, or agent of a governmental entity, shall not knowingly keep or cause to be kept any list, record, or registry of privately owned firearms or the owners of such firearms.(b) A financial institution, including an agent of the financial institution, shall not:(1) Require or permit the assignment of a firearms code in a way that distinguishes a firearms retailer from other retailers; or(2) Subject to subsections (c) and (d), decline a payment card transaction involving a firearms retailer based solely on the assignment of a firearms code.(c) This section does not prohibit a financial institution from declining or otherwise refusing to process a payment card transaction for any of the following reasons:(1) If necessary to comply with applicable state or federal law;(2) If requested by the customer;(3) If necessary due to fraud controls; or(4) For the purpose of merchant category exclusions offered by a financial institution for the purpose of expenditure control or corporate card control.(d) This section does not limit the authority of a financial institution to negotiate with responsible parties or otherwise impair a financial institution's actions related to any of the following: (2) Fraud risk, credit management, or other controls in the ordinary course of business operations;(3) Protecting against illegal activities, breach, or cyber risks; or(4) Restricting the use or availability of a firearms code in this state.Added by 2024 Tenn. Acts, ch. 773,s 1, eff. 7/1/2024.