Wyo. Stat. § 31-13-106 (2026)

officer; notice by publication.

     (a) The notice required by W.S. 31-13-104 shall be
provided by the department by personal delivery thereof to the
person to be notified or by deposit in the United States mail of
the notice in an envelope with postage prepaid, addressed to the
person at his address as shown by the records of the department.
Notice by mail is complete upon the expiration of four (4) days
following deposit of the notice. Proof of the providing of
notice shall be made by the certificate of any officer or
employee of the department or affidavit of any person over
eighteen (18) years of age, naming the person to whom notice was
provided and specifying the time, place and manner thereof.

     (b) The notice required by W.S. 31-13-104, if the identity
of the vehicle owner of record or lienholders of record, if any,
cannot be determined or if the registration contains no address
for the owner, shall be by one (1) publication in a newspaper of
general circulation in the county where the vehicle was
abandoned. Notice by publication may contain multiple listings
of abandoned vehicles. Any notice shall be in compliance with
the provisions of subsection (a) of this section.