815 ILCS 415/4
Current through Public Act 103-1052
That it shall be the duty of every agent who shall be authorized to sell tickets, or parts of tickets, or other evidences of the holder's title to travel, to exhibit to any person desiring to purchase a ticket, or to any officer of the law who may request him, the certificate of his authority thus to sell, and to keep said certificate posted in a conspicuous place in his office for the information of travelers.
815 ILCS 415/4