The information shall be categorized and systematically inventoried in accord with requirements specified by the tax commissioner and entered into the statewide data bank established by the tax commissioner for such purpose by the officer with whom the return is to be filed. The tax commissioner shall provide for the receipt and permanent preservation of the information entered in the data bank under this section and under the provisions of section nine of this article. As to any such property not so assigned a previously assessed value, effort shall be made by the appropriate county assessor to cause a back assessment to be made for the assessment date of the first day of July, one thousand nine hundred eighty-three, and subsequent assessment dates thereafter, if such assessment would have been proper as of the first day of July, one thousand nine hundred eighty- three, or thereafter, under law applicable to assessments on such dates.
W. Va. Code § 11-1A-8