((a)) ** Provisions applicable to amendments to orders** Except as provided in subsection (b), the provisions of this chapter applicable to orders shall be applicable to amendments to orders.

((b)) ** Approval of amendments by cotton producers and importers** No amendment to an order issued under this chapter shall be effective unless the Secretary determines that—

((1)) with respect to an amendment referred to in subsection (b) or (c) of , the amendment is approved by producers and importers of cotton as provided in such section; or

((2)) with respect to any other amendment, that the amendment is approved by a majority of cotton producers and importers subject to the order voting in the referendum.

((c)) ** Disapproval of any amendment to order not deemed to invalidate such order** The disapproval of any amendment to an order issued under this chapter shall not be deemed to invalidate such order.