W. Va. Code § 19-20-5: Wearing of registration tag by dog.

Every registered dog shall at all times wear a valid registration tag issued as provided in this article. The failure to have displayed or worn on any dog, at any time, of such valid tag shall be prima facie evidence that such dog is not registered and such dog shall be subject to be, and shall be, impounded, sold, or destroyed as hereinbefore or hereinafter provided.