011-7 Wyo. Code R. § 7-14
(a) If there is an objection to the preliminary notice of value, the Department assessed company may request an informal conference to provide information as to any errors of fact or law or to explain or expand upon any of the information presented in the company's original filing. If an objection is based on a clerical error, the company shall immediately notify the Department, and a conference is not necessary.
(b) Requests for conferences shall be made in writing to the Appraisal Supervisor, Appraisal Services Group, Property Tax Division, Department of Revenue within ten (10) calendar days of the postmark date of the preliminary notice. Notification of the date and time for such conference may be made by phone or electronic confirmation. Conferences shall be brief and to the point.
011-7 Wyo. Code R. § 7-14