W. Va. Code § 60-7-12b
(a) Notwithstanding any other provision of this article to the contrary, a licensee or person acting on the licensee’s behalf who sells, furnishes, or serves an alcoholic beverage to a person is not thereby liable in a civil action for damages for injury, death, or damage caused by or resulting from the impairment or intoxication of the person who was furnished the alcoholic beverage, including injury or death to other individuals, unless either of the following circumstances apply:
(c) In determining whether the sale, furnishing, or serving of alcoholic beverages to a person not of legal drinking age is done knowingly, as provided in §60-7-12b(a)(1) of this code, a rebuttable presumption that the alcoholic beverages were not sold, furnished, or served knowingly exists if:
(2) The person selling, furnishing, or serving alcoholic beverages can demonstrate that it requires each employee, servant, or agent to verify the age of any individual to whom an alcoholic beverage is sold by providing evidence:
(f) For purposes of this section, these terms are defined as follows:
“Alcoholic beverage” includes alcohol, beer, including nonintoxicating beer and nonintoxicating craft beer, wine, spirits and any other liquid or solid capable of being used as a beverage.
“Knowing” or “knowingly” means knew or should have known under a totality of the circumstances.
“Transaction scan device” means any commercial device or combination of devices used at a point of sale that is capable of deciphering in an electronically readable format the information enclosed on the magnetic strip or bar code of a driver’s license or other government-issued identity card.
“Visible intoxication” or “visibly intoxicated” means actual evidence of a person’s action or series of actions that present objective signs of intoxication. A person’s blood alcohol content or the number of alcoholic beverages a person consumes do not constitute prima facie evidence to establish that a person is visibly intoxicated within the meaning of this section but may be admissible as relevant evidence of the person’s intoxication.