Eligibility is defined as any person subject to the assessment who during the representative period determined by the Secretary have engaged in the production, feeding, or slaughtering of lambs. Such persons are eligible to participate in the referendum. Those persons whose only share in the proceeds of a sale of lambs is a sales commission, handling fee or other service fee or the person acquired ownership of the lambs to facilitate the transfer of ownership of such lambs from the seller to a third party and resold such lambs no later than 10 days from the date on which the person acquired ownership are not considered are producers, seedstock producers, or feeders and not subject to the assessment. Such persons will not be eligible to participate in the referendum.