Each member of the horse industry who has paid for the administering of the equine infectious anemia test during the previous fiscal year shall be eligible to vote in a referenda, provided that he certifies on forms approved by the Board that he has paid for such a test. Any person meeting such requirements shall be eligible to vote in the referendum, but no person shall be required to be a qualified voter in other respects. Any person who is not an individual shall vote by its authorized representative.