515 ILCS 5/5-30

(a) As used in this Section, "shark" means any species of the subclass Elasmobranchii. (b) As used in this Section, "shark fin" means a raw, dried, or otherwise processed detached fin or a raw, dried, or otherwise processed detached tail of a shark. (c) Except as otherwise provided in subsection (d) of this Section, a person may not possess, sell, offer for sale, trade, or distribute a shark fin on or after January 1, 2013. (d) Until July 1, 2013, any person may possess, sell, offer for sale, trade, or distribute a shark fin possessed by that person on January 1, 2013.