Pub. L. 94-423, tit. V, sec. 506

Sec. 506. For a period of ten years from the date of enactment of this title, no water from the unit authorized by this title shall be delivered to any water user for the production on newly irrigated lands of any basic agricultural commodity, as defined in the Agricultural Act of 1949 (63 Stat. 1051; 7 U.S.C. 1421), or any amendment thereof, if the total supply of such commodity for the marketing year in which the bulk of the crop would normally be marketed is in excess of the normal supply as defined in section 301(b)(10) of the Agricultural Adjustment Act of 1938 (62 Stat. 1251), as amended, unless the Secretary of Agriculture calls for an increase in production of such commodity in the interest of national security.