Mental Health & Substance Abuse Services, Dept. of - As enacted, clarifies that if marijuana is rescheduled or deleted as a controlled substance under federal law, the commissioner is prohibited from rescheduling or deleting marijuana under state law, unless the general assembly has established a regulatory framework for marijuana and authorized the commissioner to reschedule or delete marijuana as a controlled substance. - Amends TCA Title 4; Title 9; Title 24; Title 29; Title 33; Title 38; Title 39; Title 40; Title 41; Title 43; Title 45; Title 50; Title 53; Title 57; Title 63; Title 67; Title 68 and Title 71. SB1603 has been assigned Public Chapter Number 789 by the Secretary of State.