This chapter, except as necessary to conduct an implementation referendum vote, shall not become operative until the secretary finds, in a referendum vote conducted by the secretary, that at least 40 percent of the total number of producers from the list established by the secretary pursuant to this article participate and that either of the following has occurred:
(a) Sixty-five percent of the producers who voted in the referendum voted in favor of this chapter, and the producers so voting sold or acquired a majority of the total volume of timber in the preceding marketing year by all of the producers who voted in the referendum.
(b) A majority of the producers who voted in the referendum voted in favor of this chapter, and the producers so voting sold or acquired 65 percent or more of the total volume of timber in the preceding marketing year by all of the producers who voted in the referendum.