.15 Revocation or Suspension of Permit.

A. The violation of any of these regulations shall be sufficient cause for the revocation or suspension of a permit.

B. If the grantee or grantees of a permit fail to keep the required insurance or bond in force, the Public Service Commission will revoke the permit.

C. Except as otherwise stated, a permit may not be revoked or suspended until after investigation and a hearing, upon not less than 5 days' notice to the grantee or grantees of the permit. Notice of the hearing shall be in writing and shall be served upon the grantee, or upon one of the grantees if there is more than one, or upon the proper agent for service if the grantee is a corporation. The notice may be sent by mail to the address given in the application for permit, or to a more recent changed address on file with the Public Service Commission. The mailing shall be as effective and binding as personal service. Whenever notice is given by mail, as provided in these regulations, the date of mailing shall be considered as the time when notice is served.