045-16 Wyo. Code R. § 16-12
(a) All signs, including official and directional signs, shall be maintained in a safe condition and in sound repair. The Department shall remove signs in an unsafe condition or poor state of repair if they are not repaired upon notice. Relocation of advertising signs shall not be permitted since outdoor advertising permits are issued for specific locations. The Department shall consider written requests to improve conforming signs and structures and shall grant approval if appropriate.
(b) For nonconforming signs and structures, advertising messages may be changed and structures may be repaired, but they shall not be improved in a manner that increases the structure's value. Some examples of improvements not approved for nonconforming signs are the following:
(c) Such improvement of a structure shall cause its permit to be revoked.
(d) A nonconforming sign or structure may be replaced if destroyed by vandals. Prior approval of the Department shall be obtained before replacing an entire structure.
045-16 Wyo. Code R. § 16-12