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

(b) The Secretary shall terminate or suspend the operation of any and all of the provisions of this part 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 part at the end of any fiscal period whenever he finds that continuance is not favored by the majority of producers who, during a representative period determined by the Secretary, were engaged in the production area in the production of apricots for market: Provided, That such majority has produced for market during such period more than 50 percent of the volume of apricots produced for market in the production area; but such termination shall be effective only if announced on or before March 31 of the then current fiscal period.

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