S.C. Code Ann. § 56-5-6540 – Penalties; enforcement; violation not negligence; violation inadmissible in civil action

(A) A person violating the provisions of this article, upon conviction, must be fined not more than ten dollars, all or part of which may be suspended. No court costs may be assessed against the person convicted. No person may be fined more than twenty dollars for any one incident of one or more violations of the provisions of this article. No custodial arrest for a violation of this article may be made, except upon a warrant issued for failure to appear in court when summoned or for failure to pay an imposed fine. A conviction for violation of this article does not constitute a criminal offense.
(B) A law enforcement officer may not stop a driver for a violation of this article in the absence of another violation of the motor vehicle laws except when the stop is made in conjunction with a driver's license check or registration check conducted at a checkpoint established to stop all drivers on a certain road for a period of time. A citation for a violation of this article must not be issued without citing the violation that initially caused the officer to effect the enforcement stop.
(C) A violation of this article does not constitute negligence per se or contributory negligence and is not admissible as evidence in a civil action.
Nonuse of seatbelt as reducing amount of damages recoverable. 62 ALR5th 537.