(a) The department may cancel, revoke, or suspend any limousine carrier certificate issued under this part on any of the following grounds:

(1) The violation of any of the provisions of this part;

(2) The violation of an order, decision, rule, regulation, or requirement established by the department;

(3) Failure of a limousine carrier to pay a fee imposed on the carrier within the time required by law or by the department;

(4) Failure of a limousine carrier to maintain required insurance in full force and effect; and

(5) Failure of a limousine carrier to operate and perform reasonable services.

(b) After the cancellation or revocation of a certificate or during the period of its suspension, it is unlawful for a limousine carrier to conduct any operations as such a carrier.