Controlled Substances - As introduced, permits a person to possess cannabis that was obtained directly from, or pursuant to a diagnosis of a qualifying medical condition by, a licensed physician; specifies the sentences permitted for possessing certain amounts of cannabis that was not obtained directly from, or pursuant to a diagnosis of a qualifying medical condition by, a licensed physician. - Amends TCA Title 39, Chapter 17, Part 4.

HB 1996 modifies Tennessee's cannabis possession laws by creating a medical exception and establishing tiered penalties for non-medical use. It permits possession only if cannabis was obtained directly from a licensed physician for a qualifying medical condition (as defined in TCA §68-7-101). For non-medical possession, it sets fines up to $100 for 1 ounce or less (with no jail time), and increases penalties for larger amounts or repeat offenses - up to $2,500 fines and 6 months in jail for third offenses of more than 1 ounce. The bill directly affects Tennessee residents who possess cannabis, distinguishing between medical use and non-compliant possession.