S.C. Code Ann. § 23-45-110
If a fire protection sprinkler contractor desires to do business in any part of the State he is required to deliver to the local building official a copy of his sprinkler contractor's license. The local building official shall require a copy of the license before issuing a local license or building permit. The licensed fire protection sprinkler contractor is required to pay any fees normally imposed for local licenses or permits but the local official shall impose no other requirements on the licensed fire protection sprinkler contractor to prove competency other than a valid sprinkler contractor's license.