S.C. Code Ann. § 12-43-335
(A) For the purpose of assessing property of merchants and related businesses, as provided by Section 12-37-970, the department shall follow the classifications of the most recent North American Classification System Manual, as follows:
(2) Sector 48, except subsectors 48551 and 48541;
Sector 484, except subsectors 48412 and 48423;
Sector 483, except subsector 483211;
Sector 481, except subsector 481112;
Sector 56;
Sector 51, except subsectors 517, 5152, 51511, and 51512;
Sector 22, except subsectors 221 and 2212;
(C) For the purpose of assessing property of railroads, private carlines, airlines, water, power, telephone, cable television, sewer and pipeline companies, as provided in Section 12-4-540(A), the department shall follow the Sector 22 classification of the most recent North American Industry Classification System Manual, as follows: