; (2) $3,350,000,000 for fiscal year 2019; (3) $3,350,000,000 for fiscal year 2020; (4) $3,350,000,000 for fiscal year 2021; (5) $3,350,000,000 for fiscal year 2022; and (6) $3,350,000,000 for fiscal year 2023. . (b) Obligation authority Section 47104(c) of title 49, United States Code, is amended in the matter preceding paragraph (1) by striking 2018, and inserting 2023, . 102. Facilities and equipment (a) Authorization of appropriations from Airport and Airway Trust Fund Section 48101(a) of title 49, United States Code, is amended by striking paragraphs (1) through (5) and inserting the following: (1) $3,330,000,000 for fiscal year 2018. (2) $3,398,000,000 for fiscal year 2019. (3) $3,469,000,000 for fiscal year 2020. (4) $3,547,000,000 for fiscal year 2021. (5) $3,624,000,000 for fiscal year 2022. (6) $3,701,000,000 for fiscal year 2023. . (b) Authorized expenditures Section 48101(c) of title 49, United States Code, is amended— (1) in the subsection heading by striking Automated Surface Observation System/Automated Weather Observing System Upgrade and inserting Authorized Expenditures