; (2) in subclause (III)— (A) by striking and each fiscal year thereafter ; and (B) by striking and at the end of the subclause; and (3) inserting after subclause (III) the following: (IV) for fiscal year 2021 is more than 75 percent of the cost of all components of the rolling stock; (V) for fiscal year 2022 is more than 80 percent of the cost of all components of the rolling stock; (VI) for fiscal year 2023 is more than 85 percent of the cost of all components of the rolling stock; (VII) for fiscal year 2024 is more than 90 percent of the cost of all components of the rolling stock; (VIII) for fiscal year 2025 is more than 95 percent of the cost of all components of the rolling stock; and (IX) for fiscal year 2026 and each fiscal year thereafter is 100 percent of the cost of all components of the rolling stock; and . 4. Rail loan and loan guarantee Buy America provisions Section 502(h)(3) of the Railroad Revitalization and Regulatory Reform Act of 1976 ( 45 U.S.C. 822(h)(3) ) is amended— (1) by striking and at the end of subparagraph (A); (2) by striking the period at the end of subparagraph (B) and inserting ; and ; and (3) by adding at the end the following: (C) the requirements of section 24405(a) of title 49, United States Code. . 5. Aviation Buy America provisions Section 50101 of title 49, United States Code, is amended— (1) in subsection (a) by inserting , iron, after steel ; and (2) in subsection (b)— (A) in paragraph (2), by inserting , iron, after steel ; and (B) in paragraph (3), by striking subparagraph (A) and inserting the following: (A) the cost of components and subcomponents produced in the United States— (i) for fiscal year 2018 is more than 60 percent of the cost of all components of the facility or equipment; (ii) for fiscal year 2019 is more than 65 percent of the cost of all components of the facility or equipment; (iii) for fiscal year 2020 is more than 70 percent of the cost of all components of the facility or equipment