510 ILCS 95/1.6
"Official brucellosis certificate" means a legible record made on an official form of the state of origin or the Animal and Plant Health Inspection Service of the United States Department of Agriculture or any successor agency and issued by an accredited veterinarian of the state of origin or a veterinarian in the employ of the Animal and Plant Health Inspection Service of the United States Department of Agriculture or any successor agency. The certificate shall contain the name and address of the owner, an accurate description and identification of the swine by purebred registration number, registry association approved individual tattoo, ear notch, or by a tag placed in the right ear of the animal, and shall also indicate the date and result of an official test for brucellosis.
510 ILCS 95/1.6