Tobacco, Tobacco Products - As introduced, regulates retail vapor product stores and makes various changes to provisions regarding youth access to tobacco, smoking hemp, and vapor products. - Amends TCA Title 39, Chapter 17, Part 15 and Title 43, Chapter 27, Part 2.

HB 591 regulates retail sales of vapor products in Tennessee to restrict youth access. It defines a "retail vapor product store" as a location exclusively open to those 21+ and prohibits selling vapor products elsewhere except in specific cases (e.g., hemp-derived products under separate rules, or unflavored cartridges in non-specialty stores). The bill requires retailers to verify age upon entry and at point of sale, mandates prominent signage stating "No sales to under 21" at all points of sale, and requires additional entry signage for vapor stores. These changes directly affect retailers selling vapor products and aim to prevent underage access to such products.