W. Va. Code § 11-10-9a
(a) In general. -- Notwithstanding the provisions of section nine of this article, if the amount in dispute in any petition for reassessment filed under section eight or in any petition for refund or credit filed under section fourteen does not exceed $10,000 for any one taxable year, then, at the option of the taxpayer and concurred in by the Tax Commissioner before the hearing of the case, proceedings in the case shall be conducted under this section. The proceedings shall be conducted in an informal manner and in accordance with the rules of evidence and rules of procedure as the Tax Commissioner may prescribe. A decision, together with a brief summary of the reasons therefor shall be issued by the Tax Commissioner.