7 U.S.C. § 1434
Encouragement of production of crops of which United States is a net importer and for which price support programs are not in effect; authority to plant on set-aside acreage with no reduction in payment rate
Notwithstanding any other provisions of this Act, the Secretary shall encourage the production of any crop of which the United States is a net importer and for which a price support program is not in effect by permitting the planting of such crop on set-aside acreage and with no reduction in the rate of payment for the commodity.