W. Va. Code § 17-22-16
Every permit issued by the commissioner shall be assigned a separate identification number and each permittee shall fasten to each advertising sign or device and each advertising display not posted on an advertising sign a label or marker not larger than two inches by six inches, which shall be furnished by the commissioner, and on which shall be plainly visible the permit number, the expiration date of the permit and the name of the permittee. Permittees shall be charged five dollars for each label or marker issued. The construction, erection, operation, use or maintenance of an outdoor advertising sign, display or device without having affixed to it a label or marker shall be prima facie evidence that it has been constructed or erected and is being operated, used or maintained in violation of the provisions of this article.
W. Va. Code § 17-22-16