Amends TCA Title 4; Title 5; Title 6; Title 7; Title 29; Title 33; Title 38; Title 39; Title 40; Title 41; Title 43; Title 45; Title 50; Title 53; Title 54; Title 63; Title 67; Title 68 and Title 71.

Tennessee SB0921 proposes to decriminalize marijuana use under specific circumstances and establish a regulatory framework for its cultivation, distribution, and use. The bill affects individuals aged 21 and older, allowing them to possess, transport, and cultivate marijuana, as well as transfer it without remuneration. Key provisions include the establishment of licensing requirements for marijuana businesses, taxation on sales, and protections from legal action for authorized users.