Wyo. Stat. § 15-5-208
Application for pension may be made prior to actual retirement upon statement of the intention to retire, but payment shall not begin until the applicant has actually retired and his name is stricken from the payroll of the city or town. No fireman or any of his survivors is entitled to any of the benefits of this article while the fireman or his survivors are receiving payments under the Worker's Compensation Act, but when the payments under the Worker's Compensation Act terminate, his or their rights to the benefits of this article attach. Any fireman who is entitled to the benefits of insurance paid for from the general fund of any city or town is not entitled to any of the benefits of this article until the insurance payments cease.
W.S. 15-5-208