505 ILCS 100/14
To prevent the dissemination of noxious weeds through any article, including machinery, equipment, plants, materials and other things, the Director, in consultation with the Dean of the College of Agricultural, Consumer and Environmental Sciences of the University of Illinois and the Director of the Agricultural Experiment Station at the University of Illinois, shall, from time to time, publish a list of noxious weeds which may be disseminated through articles and a list of articles capable of disseminating such weeds, and designate treatment of such articles as, in his opinion, would prevent such dissemination. Until such article is treated in accordance with the applicable regulations, it shall not be moved from such premises except under and in accordance with the written permission of the Control Authority having jurisdiction of the area in which such article is located, and the Control Authority may hold or prevent its movement from such premises. The movement of any such article which has not been so decontaminated, except in accordance with such written permission, may be stopped by the Control Authority having jurisdiction over the place in which such movement is taking place and further movement and disposition shall only be in accordance with such Control Authority's direction.
505 ILCS 100/14