W. Va. Code § 29-1E-10

The amendatory provisions to section two of this article enacted in the year one thousand nine hundred seventy-nine shall become effective at such time as nine of the eligible party states to the southern interstate nuclear compact, which may include the Commonwealth of Puerto Rico, and the United States Virgin Islands, approve substantially the same changes in the compact as are provided for in section two of this article and the Congress of the United States consents to the compact, substantially as amended by section two of this article; until such time, this state shall continue to remain a member of the southern interstate nuclear compact as set forth in chapter three, acts of the Legislature, one thousand nine hundred sixty-four.