505 ILCS 90/12
Every nurseryman or nursery dealer who sells or gives away nursery stock in this State is hereby required to attach to the outside of each package, box, bale, or carload shipped, transported or delivered by any means, a tag or poster on which appears an exact copy of the valid certificate, except over-the-counter retail sales, accompanied by a sales slip. It is unlawful for any common carrier, or driver, or owner of a truck or other vehicle to accept for shipment, or transportation, or to transport any nursery stock from place to place within the State unless such nursery stock has attached thereto a valid official certificate of inspection showing that such stock has been inspected and found apparently free from injurious insect pests and plant diseases, a nursery dealer's certificate or a certificate showing that the shipment has been authorized by the Department. However, nursery stock consigned to the Department may be offered and accepted for shipment and shipped without such certificate.
In case any nursery stock is shipped or transported in this State or into this State from another state, country or province without a required valid certificate plainly affixed as aforesaid, the fact must be promptly reported to the Department by the person carrying the same, together with the names of the consignor and consignee, and the nature of the shipment, and the person carrying such stock must return it to the consignor, hold it for instructions from the Department, or send it to the Department, with the transportation charges prepaid, for inspection.
Any person receiving nursery stock transported from any point within the State, or any other state, country, or province, without a valid certificate affixed as aforesaid, shall at once notify the Department of the fact, and shall not plant, use or allow such nursery stock to leave his possession until it has been inspected or released by the Department, and the expenses incurred in making such inspection are paid by him. Such stock may be shipped to the Department, with all transportation charges prepaid, for inspection without any additional expense to the owner other than transportation, drayage and storage charges when such charges are necessarily incurred.
505 ILCS 90/12