Wyo. Stat. § 9-3-451: Enforcement.

(a) An action may be maintained by:

(i) A public employer, participant, beneficiary or fiduciary for any one (1) or more of the following purposes:

(A) To enjoin an act, practice or omission that violates this act;

(B) For appropriate equitable relief for a breach of trust under W.S. 9-3-443;

(C) For other appropriate equitable relief to redress the violation of or to enforce this act; or

(ii) The retirement system to enjoin any violation of W.S. 9-3-447.

(b) In an action under this section by a participant, beneficiary or fiduciary, the court may award reasonable attorney fees and costs to either party.