Illinois Statutes Chapter 820. Employment § 17/10. Post-employment covenants not to compete are prohibited

(a) No broadcasting industry employer may require in an employment contract that an employee or prospective employee refrain from obtaining employment in a specific geographic area for a specific period of time after termination of employment with that broadcasting industry employer.

(b) This Section does not prevent the enforcement of a covenant not to compete during the term of an employment contract or against an employee who breaches an employment contract.