W. Va. Code § 30-1-25: Primacy of state regulation of occupational practice.

The power to regulate occupations for the protection of the public is exclusively a function of the Legislature. A public body or political subdivision may only propose and administer the regulation of a trade, occupation, or profession – including, but not limited to, the issuance of a license, requirement of registration, or recognition of a certification – to the extent expressly authorized to do so under this code.