; (iii) in the case of articles entered on or after January 1, 2029, and before January 1, 2031, 45 percent; and (iv) in the case of articles entered on or after January 1, 2031, 50 percent. ; and (4) by adding at the end the following: (D) Pass-through and cost or value of materials produced in the customs territory of the United States (i) In general The duty-free treatment provided under this title shall apply to any article that meets the requirements of this paragraph. (ii) Exception with respect to materials produced in the customs territory of the United States To the extent that the cost or value of materials produced in the customs territory of the United States is included with respect to an article, an amount not to exceed 15 percent of the appraised value of the article at the time it is entered that is attributed to such United States cost or value may be applied toward determining the applicable percentage described in subparagraph (B). (iii) No pass-through to other programs Notwithstanding clause (i), duty-free treatment under any other program providing such treatment for an article, conditional on the eligibility of an article to be treated as originating for purposes of this paragraph, may only be extended to an article that is otherwise eligible for duty-free treatment under this title in a calendar year— (I) if the article would remain eligible for such treatment even if subparagraph (A) were applied by substituting 35 percent for the percentage described in subparagraph (B) with respect to that calendar year