The utility or utilities electing to file an application, project development order, or combined application under this article shall bear the costs associated with these positions, including all salaries, benefits, expenses, and charges, in proportion to the number of these units that they own in whole or in part as a percentage of the total number of these units in the regulatory process under this article at the time. The Office of Regulatory Staff annually must certify to the Department of Revenue by May first the amounts to be assessed. By July first of each year, the Department of Revenue shall assess each utility for its assessment, which assessment must be due and payable by July fifteenth. The assessments must be charged against a utility by the Department of Revenue and collected in the manner provided by law for the collection of taxes from utilities, including the enforcement and collection provisions of Article 1, Chapter 54 of Title 12, and paid into the State Treasury as are other taxes collected by the Department of Revenue for the State less the Department of Revenue's actual incremental increase in the cost of administration. These assessments are in addition to any amounts assessed pursuant to Sections 58-4-60 and 58-5-480 and must be deposited in a special fund in the State Treasury from which the salaries, benefits, expenses, and charges must be paid.
S.C. Code § 58-33-295