U.S. note 15(b)
(b) The aggregate quantitative limitations that may be established under any of subheadings 9903.17.21 through 9903.17.33 shall apply only to specialty sugars, as defined by the United States Trade Representative, imported during any effective period announced in the Federal Register by the United States Trade Representative for such a subheading in any year, during which period only the aggregate quantity of the specified goods shall be allowed entry into the customs territory of the United States. Such limitations shall apply notwithstanding any other quantitative limitations on such goods that may be provided for in the tariff schedule. Any quantity set forth in such a notice issued by the United States Trade Representative for any subheading specified herein may be allocated among supplying countries and areas and shall thereby supersede any quantity or allocation that may have been announced under additional U.S. note 5 to chapter 17.