W. Va. Code § 23-1-14

The Insurance Commissioner shall prepare and furnish free of cost forms (and provide in his or her rules for their distribution so that they may be readily available) of applications for benefits for compensation, notices to employers, proofs of injury or death, of medical attendance, of employment and wage earnings, and any other forms considered proper and advisable. It is the duty of employers to constantly keep on hand a sufficient supply of the forms.