Surrender of bond or license.

(1) Upon receipt of a written request from any registrant to cancel the license, the department shall have the power to cancel such license, effective 60 days from the date of such written request. No such license shall be canceled unless the registrant has, prior to the date of such cancellation, paid to this state all taxes due and payable, together with all penalties and interest accruing under any of the provisions of this part, and unless the registrant has surrendered to the department the license certificate issued to him or her.

(2) If, upon investigation, the department ascertains and finds that any person to whom a license has been issued under this part is no longer engaged in the sale, use, transfer, or delivery of diesel fuels and has not been so engaged for a period of 6 months, the department shall have the power to cancel the license by giving such person 60 days’ notice of the cancellation, mailed to his or her last known address, in which event the license certificate theretofore issued to such person shall be surrendered to the department.

(3) If any license is canceled by the department as provided in this section, and if the registrant has paid to this state all taxes due and payable, together with any and all penalties and interest accruing under this part, the department shall cancel and surrender the bond theretofore filed by said registrant.