Nothing in this chapter preempts or supersedes any other program relating to sheep promotion, research, or information organized and operated under the laws of the United States or any State.
(b) Amendments to orders
The provisions of this chapter applicable to an order shall be applicable to amendments to the order, except that the Secretary is not required to conduct a referendum on a proposed amendment to an order.
7 U.S.C. § 7109 (2018)