S.C. Code Ann. § 56-2-5020: Prohibited UTV operators and modifications.

(A) A person who holds a beginner's permit pursuant to Section 56-1-50 or solely a moped operator's license pursuant to Section 56-1-1720 may not operate a UTV on a public highway, even if a licensed driver accompanies the beginner's permit holder in the UTV pursuant to Section 56-1-50(B)(1).

(B) A person who holds a temporary alcohol license, route restricted driver's license, provisional driver's license, or solely a motorcycle license may not operate a UTV on a public highway.

(C) It is unlawful to operate a UTV on a road if the UTV has a modified exhaust system which causes the operation of the UTV to be louder than its manufactured design.