W. Va. Code § 24-2-13
In addition to all other powers and duties conferred upon the public service commission herein, the commission shall be charged with the duty of enforcing the provisions of the United States "Federal Railroad Safety Act" and the "Uniform Motor Carrier Identification Act" in this state under the federal requirements contained therein requiring state enforcement of such acts, insofar as the same are not repugnant to the laws of this state or contrary to the rules and regulations of the commission.
The commission shall also perform those duties expressly conferred upon a state regulatory authority by the "National Energy Conservation Policy Act of 1978,""Power Plant and Industrial Fuel Use Act of 1978," and the "Public Utilities Regulatory Policy Act of 1978," insofar as the same are not repugnant to the laws of this state or contrary to the rules and regulations of the commission, unless the governor, exercising authority reserved to him in said acts, designates another agency to perform such duties, in whole or in part. The term "state regulatory authority" as used in this paragraph shall have the same meaning as such term is defined by said federal acts.
In addition, the commission shall carry out other federal acts, including appropriate portions of the "Natural Gas Policy Act of 1978," for which the governor designates it as the responsible agency in this state.
W. Va. Code § 24-2-13