740 ILCS 174/15

    (740 ILCS 174/15)
    (Text of Section before amendment by P.A. 103-867)
    Sec. 15. Retaliation for certain disclosures prohibited.

(a) An employer may not retaliate against an employee who discloses information in a court, an administrative hearing, or before a legislative commission or committee, or in any other proceeding, where the employee has reasonable cause to believe that the information discloses a violation of a State or federal law, rule, or regulation.

(b) An employer
may not retaliate against an employee for disclosing information to a
government or law enforcement agency, where the employee has reasonable
cause to believe that the information discloses a violation of a State
or federal law, rule, or regulation.

(Source: P.A. 95-128, eff. 1-1-08.)

    (Text of Section after amendment by P.A. 103-867)
    Sec. 15. Retaliation for certain disclosures prohibited.

(a) An employer may not take retaliatory action against an employee who discloses or threatens to disclose to a public body conducting an investigation, or in a court, an administrative hearing, or any other proceeding initiated by a public body, information related to an activity, policy, or practice of the employer where the employee has a good faith belief that the activity, policy, or practice (i) violates a State or federal law, rule, or regulation or (ii) poses a substantial and specific danger to employees, public health, or safety.

(b) An employer may not take retaliatory action against an employee for disclosing or threatening to disclose information  to a government or law enforcement agency information related to an activity, policy, or practice of the employer, where the employee has a good faith belief that the activity, policy, or practice of the employer (i) violates a State or federal law, rule, or regulation or (ii) poses a substantial and specific danger to employees, public health, or safety.

(c) An employer may not take retaliatory action against an employee for disclosing or threatening to disclose to any supervisor, principal officer, board member, or supervisor in an organization that has a contractual relationship with the employer who makes the employer aware of the disclosure, information related to an activity, policy, or practice of the employer if the employee has a good faith belief that the activity, policy, or practice (i) violates a State or federal law, rule, or regulation or (ii) poses a substantial and specific danger to employees, public health, or safety.

(Source: P.A. 103-867, eff. 1-1-25.)