Wyo. Stat. § 31-7-123: Authority of division to cancel license or permit.

The division may cancel any driver's license, instruction permit or commercial learner's permit upon determining that the licensee or permittee was not entitled to the license or permit, that the licensee or permittee failed to give the required or correct information in his application, that the license or permit has been altered or upon receipt of a written statement from a licensed treating physician or optometrist stating that the licensee or permittee is not capable of safely operating a motor vehicle. The licensed treating physician or optometrist may request an examination by the division under W.S. 31-7-122.