(a) Each owner shall make application to the County Treasurer in which the primary place of business is located.
(b) Upon approval by the County Treasurer, numbered decals will be assigned to each item of mobile machinery. The owner shall retain a copy of ADV 21 for tracking and reporting purposes. The sticker shall be affixed on the mobile machinery for which it was issued so as to be visible by a person not operating the mobile machinery.
(c) The authorizing County Treasurer shall forward a copy of Form ADV 21 to the County Assessor in the county in which the primary place of business is located.
011-22 Wyo. Code R. § 22-4