S.C. Code Ann. § 12-36-550: Duration of license's validity; display of license; license not transferable or assignable.

The license provided for in this article:

(1) is valid so long as the person to whom it is issued continues in the same business, unless revoked by the department. It is presumed that a retailer is not continuing in the same business and must surrender the retail sales license if the retailer has no retail sales for twenty-four consecutive months. To allow the license to remain valid, the retailer may submit an affidavit to the department swearing that the business is continuing;

(2) must at all times be conspicuously displayed at the place for which it was issued;

(3) is not transferable or assignable.