(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 section 2107 of this title , 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. ( Pub. L. 89–502, § 10 , July 13, 1966 , 80 Stat. 283 ; Pub. L. 101–624, title XIX, § 1995 , Nov. 28, 1990 , 104 Stat. 3912 ; Pub. L. 102–237, title VIII, § 808(a)(3) , Dec. 13, 1991 , 105 Stat. 1883 .) Editorial Notes Amendments 1991—Subsec. (b)(1). Pub. L. 102–237 substituted “subsection (b) or (c) of section 2107” for “section 2107(b) or 2107(c)”. 1990— Pub. L. 101–624 amended section generally. Prior to amendment, section read as follows: “The provisions of this chapter applicable to orders shall be applicable to amendments to orders.” CFR Title Parts 7 1051 , 1205