As used in sections 2-1813 to 2-1825, unless the context otherwise requires:
(1) Department shall mean the Department of Agriculture;
(2) Director shall mean the Director of Agriculture;
(3) Nebraska Potato Development Committee shall mean the advisory committee established by section 2-1803;
(4) Commercial potato growing area shall mean a geographic area in which potatoes are produced and offered for sale in commercial quantities;
(5) Commercial shipment shall mean any potatoes shipped in commerce or processed and destined for human consumption, and noncertified seed potatoes shipped out of the state;
(6) Commercial potato acreage shall mean a potato field of three acres or more; and
(7) Preceding crop year shall mean the last calendar year for which official acreage statistics have been compiled by the state-federal division of agricultural statistics.