W. Va. Code § 11-13O-10: Administrative rules.

The tax commission may prescribe such rules as may be necessary to carry out the purposes of this article, including, but not limited to, rules relating to applicability of credit, method of claiming credit, credit recapture, documentation necessary to claim credit and rules preventing abuse of this article by related persons or by change in the form of doing business. All rules promulgated under this article shall be promulgated in accordance with article three, chapter twenty-nine-a of this code.