House Bill 1589, also known as Senate Bill 2954, proposes amendments to Tennessee law regarding the regulation of detachable firearm ammunition magazines. The bill establishes a new section in Tennessee Code Annotated, Title 39, Chapter 17, which makes it illegal for individuals to manufacture, transfer, or purchase ammunition magazines that can hold more than ten rounds of ammunition. Violations of this law would result in a civil penalty of up to $5,000, and any magazines obtained in violation of this section would be subject to forfeiture under existing laws.

Additionally, the bill includes a provision that allows individuals who lawfully obtained high-capacity magazines before July 1, 2023, to retain possession of those magazines without penalty. The act is set to take effect on July 1, 2023, emphasizing the urgency of the public welfare in implementing these regulations.