Within 120 days after final approval by the temporary sheep and wool production development and marketing program committee of any proposed sheep and wool production development or marketing program, the Director shall determine by referendum whether the affected producers assent to such proposed sheep and wool production development or marketing program. The proposed sheep and wool production development and marketing program is approved when a majority of those voting in the referendum vote in favor of such proposed sheep and wool production development and marketing program.
     If any proposed sheep and wool production development and marketing program is not approved by such referendum, no additional referendum on such sheep and wool production development and marketing program may be held for 2 years from the date of the close of such referendum period. A succeeding referendum shall be called by the Director upon request by written petition of 400 producers of sheep and/or wool with at least 5 signers of such petition from each of 25 counties. Prior to holding a succeeding referendum, the Director shall appoint a temporary sheep and wool production development and marketing program committee who are sheep and/or wool producers and shall follow the procedures as set forth in Section 6.