The Department may at any time, after notice and opportunity to be heard, suspend, revoke, alter, or amend any certificate, if it shall be made to appear that the holder has willfully violated or refused to observe orders rules, or regulations prescribed by the Department, provisions of the Motor Carrier Law, or any other law of this State regulating motor carriers for hire and applicable to the holder of such certificate.
S.C. Code Regs. § 38-446