(1) The seed potato certification fee is twenty-nine dollars per acre or fraction of an acre.

(2) The certification fee for a field plot is twenty dollars per application.

(3) The department may assess additional fees for time and mileage pursuant to chapter 16-470 WAC.

(4) Growers must submit a minimum of fifty percent of the total certification fees with the applications.

(5) Final payment of certification fees is due and payable November 1 of each year.

(6) For the purpose of fee assessment, acreage may be adjusted by no more than ten percent prior to the first field inspection. The department will refund certification fees, if a written withdrawal notice is received by the department prior to the first field inspection.

(7) Growers are not required to pay the final half of the certification fee on lots rejected or withdrawn before the second inspection.

(8) The department will deny certification to any applicant who fails to pay fees when due.

(9) The department will not accept applications from any grower owing the department for previous fees.