510 ILCS 40/5
Beginning January 1, 1976, any person desiring to adopt a brand shall forward to the Department a facsimile brand, a recording fee of $15, and completed application on forms prescribed by the Department. If the brand is accepted, the Department shall file the brand in its official brand book, shall furnish the applicant a brand certificate, and shall inform the applicant that he has exclusive right to the use of such brand in the State of Illinois from the date of filing by the Department. Additional brand certificates of a recorded brand may be obtained from the Department upon payment of a $15 fee for each certificate.
If the Department determines that the submitted brand is already on record for another person or that it so closely resembles the brand of another person that they cannot be readily distinguished, the Department shall notify the applicant and shall return the facsimile brand and recording fee.
510 ILCS 40/5