Ill. Admin. Code tit. 44, § 8.5015 – Negotiations for Future Employment

a) It is unlawful for any person employed in or on a continual contractual relationship with any of the offices or agencies of State government to participate in contract negotiations on behalf of that office or agency with any vendor, partnership, association or corporation with whom that person has a contract for future employment or is negotiating concerning possible future employment. [30 ILCS 500/50-15(a)]
b) An individual who performs services pursuant to a contract and who meets the requirements of an "employee" as opposed to an "independent contractor" is in a "continual contractual relationship" from the effective date of the contract until such time as the contract is terminated.
c) An individual who performs services pursuant to a contract and who meets the requirements of an "independent contractor" as opposed to an "employee" is in a "continual contractual relationship" if the contract term is indefinite, is automatically renewed, is renewable at the individual's option, is renewable unless the State must act to terminate, or has a definite term of at least three months.