(a) Any person may make application to the commissioner for inspection or certification of seed potatoes growing or to be grown. Upon receiving such application and the required fee and such other information as may be required, the commissioner shall cause such potatoes to be inspected or certified in accordance with the provisions of sections 21.111 to 21.122 and the rules adopted and published thereunder.
(b) If a grower wishes to withdraw a field or lab after having made application for inspection and such withdrawal is requested before the field or lab inspection has been made, the fee paid shall be refunded to said grower.