815 ILCS 395/7
Any person, partnership, corporation, or association, or any officer, director, employee, or agent thereof who shall sell or offer or expose for sale in the state any article to which is applied any quality mark which does not conform to all the provisions of this Act, or from which is omitted any mark required by the provisions of this Act, shall be guilty of a Class B misdemeanor. Provided, however, that it shall be a defense to any prosecution under this chapter for the defendant to prove that the said article was manufactured and marked with the intention of and for purposes of exportation from the United States, and that the said article was either actually exported from the United States to a foreign country within six months after date of manufacture thereof with the bona fide intention of being sold in the said country and of not being reimported, or that it was delivered within six months after date of manufacture thereof to a person, firm, or corporation whose exclusive customary business is the exportation of such articles from the United States.
815 ILCS 395/7