(a) Once an eradication zone has been designated by adoption of a rule under the Texas Agriculture Code (Code), §74.1042, the eradication zone is not established until approved by a referendum of cotton growers in the new eradication zone held in accordance with the Code, §74.105.(b) If the commissioner divides a statutory eradication zone by adoption of a rule under SB 1814, §1.27, the commissioner may hold a referendum in the new zone.(c) Once an eradication zone has been designated by rule and established by approval of cotton growers in the eradication zone, as provided in subsections (a) and (b) of this section, the eradication zone shall operate in accordance with the provisions of the Code, Chapter 74, Subchapter D, and rules adopted thereunder.