W. Va. Code § 5-10-22d
Beginning on the first day of January, one thousand nine hundred ninety-one, as an additional supplement to other retirement allowances provided, any annuitant who is receiving a retirement annuity on the effective date of this section shall receive a supplemental benefit, prospectively, if the effective date of retirement for such annuitant was prior to the first day of January, one thousand nine hundred eighty-one. Each such annuitant shall receive as his or her supplemental benefit an increased annual amount which is the product of the sum of six dollars multiplied by his or her years of credited service. Nothing in this or any other section of this code shall be construed to require any appropriation of state general revenue funds for the payment of any benefit provided for in this section.
W. Va. Code § 5-10-22d