Cal. Veh. Code § 34672

If a motor carrier permit is paid for by a check that is dishonored by the bank, the permit shall be canceled. The department shall notify the carrier that the check was dishonored and that the permit will be canceled 30 days from the date of notification if the applicant does not make restitution. If the applicant does not make restitution for the dishonored check, and pay the dishonored check fee within 30 days of the notice, the application for a motor carrier permit shall be canceled.