720 ILCS 550/15.1

(a) If any cannabis derivative is designated or rescheduled as a controlled substance under federal law and notice thereof is given to the Department, the Department shall similarly control the substance under the Illinois Controlled Substances Act after the expiration of 30 days from publication in the Federal Register of a final order designating a substance as a controlled substance or rescheduling a substance unless within that 30 day period the Department objects, or a party adversely affected files with the Department substantial written objections to inclusion or rescheduling. In that case, the Department shall publish the reasons for objection or the substantial written objections and afford all interested parties an opportunity to be heard. At the conclusion of the hearing, the Department shall publish its decision, by means of a rule, which shall be final unless altered by statute. Upon publication of objections by the Department, similar control under the Illinois Controlled Substances Act whether by inclusion or rescheduling is suspended until the Department publishes its ruling. (b) If any cannabis derivative is deleted as a controlled substance under Federal law and notice thereof is given to the Department, the Department shall similarly control the substance under this Act after the expiration of 30 days from publication in the Federal Register of a final order deleting a substance as a controlled substance or rescheduling a substance unless within that 30 day period the Department objects, or a party adversely affected files with the Department substantial written objections to inclusion or rescheduling. In that case, the Department shall publish the reasons for objection or the substantial written objections and afford all interested parties an opportunity to be heard. At the conclusion of the hearing, the Department shall publish its decision, by means of a rule, which shall be final unless altered by statute. Upon publication of objections by the Department, similar control under this Act whether by inclusion or rescheduling is suspended until the Department publishes its ruling. (c) Cannabis derivatives are deemed to be regulated under this Act until such time as those derivatives are scheduled as provided for under the Illinois Controlled Substances Act. Following such scheduling, those derivatives shall be excepted from this Act and shall be regulated pursuant to the Illinois Controlled Substances Act. At such time that any derivative is deleted from schedules provided for under the Illinois Controlled Substances Act, that derivative shall be regulated pursuant to this Act. (Source: P.A. 98-756, eff. 7-16-14.)