(a) The Secretary may, at any time, terminate the provision of this subpart by giving at least one day's notice by means of a press release or in any other manner which he may determine.

(b) The Secretary may terminate or suspend the operation of any or all of the provisions of this subpart whenever he finds that such provisions do not tend to effectuate the declared policy of the act.

(c) The Secretary shall terminate the provisions of this subpart at the end of any fiscal period whenever he finds that such termination is favored by a majority of producers who, during the preceding fiscal period, have been engaged in the production for market of potatoes: Provided, That such majority has, during such period, produced for market more than fifty percent of the volume of such potatoes produced for market; but such termination shall be effective only if announced on or before April 30 of the then current fiscal period.

(d) The Secretary shall conduct a referendum as soon as practicable after July 31, 1992, and at such time every sixth year thereafter, to ascertain whether continuance of this order is favored by potato producers. The Secretary may terminate the provisions of this order at the end of any fiscal period in which the Secretary has found that continuance of this order is not favored by producers who, during a representative period determined by the Secretary, have been engaged in the production for market of potatoes in the production area. Termination of the order shall be effective only if announced on or before July 1 of the then current fiscal period.

(e) The provisions of this subpart shall, in any event, terminate whenever the provisions of the act authorizing them cease to be in effect.