The implementing bill referred to in subparagraph (A) shall contain only those provisions that are necessary or appropriate to implement an extension of the provisions of section
1677(5B)(B), (C), (D), and (E) of this title as in effect on the day before the date of the enactment of the implementing bill or as modified to reflect the determination of the Subsidies Committee to extend Articles 6.1, 8, and 9 of the Subsidies Agreement.