Wyo. Stat. § 11-20-224
The owner of livestock used for rodeo, show, racing, pleasure or Wyoming farm or ranch work purposes may obtain a permanent brand inspection certificate authorizing movement of the livestock intrastate or interstate, valid for the life of the livestock or until a change of ownership takes place, upon approval of a proper application in writing by an authorized Wyoming brand inspector. The application shall contain, or be accompanied by, valid proof of ownership of the livestock by the applicant, and shall include a thorough physical description including all brands carried by the livestock and all distinguishing marks or markings. The possession of a valid permanent brand inspection certificate shall constitute prima facie evidence of ownership. Upon any change in ownership the certificate is void.
W.S. 11-20-224