Pub. L. 83-690, tit. VII, sec. 706

Sec. 706. Except as otherwise provided in this title, the amounts, terms, and conditions of the price support operations and the extent to which such operations are carried out shall be determined or approved by the Secretary of Agriculture. The Secretary may, in determining support prices and rates of payment, make adjustments in such prices or rates for differences in grade, quality, type, location, and other factors to the extent he deems practicable and desirable. Determinations by the Secretary under this title shall be final and conclusive. The facts constituting the basis for any operation, payment, or amount thereof when officially determined in conformity with applicable regulations prescribed by the Secretary shall be final and conclusive and shall not be reviewable by any other officer or agency of the Government.