The Illinois Certification Of Corporate Surety is a form required by the state of Illinois when a corporate entity is surety for a contract. It is provided to certify that the surety company has the financial and legal standing to guarantee the performance of a contract. There are two types of Illinois Certification Of Corporate Surety: Certificate of Authority and Certificate of Compliance. The Certificate of Authority confirms the surety company is licensed and authorized to conduct business in the state of Illinois and the Certificate of Compliance confirms the surety company meets the financial standards and requirements set by the state. The Illinois Certificate of Corporate Surety must be completed and signed by an authorized officer of the surety company in order for it to be valid.