S.C. Code Ann. § 23-35-20
No permissible articles of common fireworks enumerated in Section 23-35-10 shall be sold, offered for sale, possessed, stored or used in the State unless they shall be properly named to conform to the nomenclature of Section 23-35-10 and unless they are certified as "Common Fireworks" on all shipping cases and by printing on the article to be of sufficient size and so positioned as to be readily recognized by law enforcement authorities and the general public.