S.C. Code Ann. § 56-1-300: Suspension or revocation of license without preliminary hearing.

In addition to other authority of law, the Department of Motor Vehicles may suspend or revoke the license of a driver without preliminary hearing upon a showing by its records or other sufficient evidence that licensee:

(1) Has been convicted of an offense for which mandatory revocation or suspension is required upon conviction; or

(2) Has been convicted of an offense in another state which if committed in this State would be grounds for suspension or revocation.