(A) A certificate may be suspended or revoked by the Board:
(1) If the holder of the certificate has been convicted of a felony against the state or conviction of any offense against another state which would have been a felony if committed in the state;
(2) If the holder of the certificate has violated any federal or state law relating to the use, possession or sale of alcoholic beverages or narcotic or barbiturate drugs;
(3) If the holder of the certificate is addicted to or habitual user of alcoholic beverages or narcotic or barbiturate drugs;
(4) If the holder of the certificate has violated any federal or state law relating to prostitution;
(5) If the holder of the certificate is not a citizen of the United States;
(6) If the holder of the certificate is a habitual violator of traffic laws or ordinances;
(7) If the holder of the certificate fails to operate the taxicab in accordance with the provisions of this chapter;
(8) If the holder of the certificate ceases to operate any taxicab for a period of 30 consecutive days without permission from the Board; or
(9) For any other reason that the Board determines warrants suspension or revocation.
(B) No certificate shall be revoked unless and until 48 hours notice of the hearing has been given to the holder of the certificate and the hearing is held.
(`86 Code, § 19-37)