In addition, the taxpayer shall certify to the Department that the average weekly wage of its full-time employees is greater than the lower of the state or local average weekly wages for the taxpayer's industry.
Such additional taxes and interest are hereby imposed on manufacturing companies using the alternative apportionment set forth in this section.
"Base year employment" means the average number of full-time employees employed by the manufacturing company in the Commonwealth in the taxable year that ended immediately prior to the first taxable year in which the manufacturing company used the alternative apportionment set forth in this section.
"Full-time employee" means an employee of a manufacturing company who is employed for an indefinite duration in the Commonwealth for which the standard fringe benefits are paid by the manufacturing company, for which employment requires a minimum of either (i) 35 hours of an employee's time per week for the entire normal year of such manufacturing company's operations, which "normal year" shall consist of at least 48 weeks, or (ii) 1,680 hours per year.
"Manufacturing company" means a domestic or foreign corporation primarily engaged in activities that, in accordance with the North American Industrial Classification System (NAICS), United States Manual, United States Office of Management and Budget, 1997 Edition, would be included in Sector 11, 31, 32, or 33.
Va. Code § 58.1-422