C.R.S. § 18-18-201
18-18-201. Authority to control
18-18-201. Authority to control. The board shall administer this part 2 and the general assembly, by bill, may add substances to or delete or reschedule substances listed in section 18-18-203, 18-18-204, 18-18-205, 18-18-206, or 18-18-207.