510 ILCS 30/1.11
The term "health certificate", "certificate of health", "certificate of veterinary inspection", or "interstate health 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, which shows that the animals listed thereon meet the health requirements of the state of destination. The health certificate must contain the name and address of the consignor, the name and address of the consignee, and an accurate description or identification of the animals involved and must also indicate the health status of the animals including results and dates of required tests, and vaccinations, if any. A health certificate for any purpose other than Illinois exhibition cattle is valid for 30 days. A health certificate for Illinois exhibition cattle is valid for 90 days.
510 ILCS 30/1.11