National Center for Science and Engineering Statistics | NSF 26-309 Table 14. Federal budget authority for Transportation (400) R&D and R&D plant: FYs 2024–26 (Millions of dollars and percent change) Budget function and agency 2024 actual ($millions) 2025 preliminarya ($millions) 2026 proposed ($millions) 2024–25 (% change) 2025–26 (% change) R&D and R&D plant 2,198 2,234 1,916 1.6 -14.2 Air transportation (402) 1,347 1,339 919 -0.6 -31.4 Department of Transportation 568 560 468 -1.4 -16.4 Federal Aviation Administration 568 560 468 -1.4 -16.4 National Aeronautics and Space Administration 764 764 416 0.0 -45.5 Aeronautics research 764 764 416 0.0 -45.5 Department of Homeland Security 15 15 35 0.0 133.3 Transportation Security Administration 15 15 35 0.0 133.3 Ground transportation (401) 684 724 770 5.8 6.4 Department of Transportation 684 724 770 5.8 6.4 Federal Highway Administration 457 482 540 5.5 12.0 Federal Motor Carrier Safety Administration 14 14 14 0.0 0.0 Federal Railroad Administration 60 59 50 -1.7 -15.3 Federal Transit Administration 46 46 39 0.0 -15.2 National Highway Traffic Safety Administration 107 123 127 15.0 3.3 Water transportation (403) 8 8 68 0.0 750.0 Department of Homeland Security 8 8 68 0.0 750.0 Coast Guard 8 8 68 0.0 750.0 Other transportation (407) 159 163 159 2.5 -2.5 Department of Transportation 159 163 159 2.5 -2.5 R&D 2,141 2,157 1,840 0.7 -14.7 Air transportation (402) 1,300 1,272 852 -2.2 -33.0 Department of Transportation 521 493 401 -5.4 -18.7 Federal Aviation Administration 521 493 401 -5.4 -18.7 National Aeronautics and Space Administration 764 764 416 0.0 -45.5 Aeronautics research 764 764 416 0.0 -45.5 Department of Homeland Security 15 15 35 0.0 133.3 Transportation Security Administration 15 15 35 0.0 133.3 Ground transportation (401) 674 714 761 5.9 6.6 Department of Transportation 674 714 761 5.9 6.6 Federal Highway Administration 453 478 536 5.5 12.1 Federal Motor Carrier Safety Administration 14 14 14 0.0 0.0 Federal Railroad Administration 54 53 45 -1.9 -15.1 Federal Transit Administration 46 46 39 0.0 -15.2 National Highway Traffic Safety Administration 107 123 127 15.0 3.3 Water transportation (403) 8 8 68 0.0 750.0 Department of Transportation 8 8 68 0.0 750.0 Coast Guard 8 8 68 0.0 750.0 Other transportation (407) 159 163 159 2.5 -2.5 Department of Transportation 159 163 159 2.5 -2.5
National Center for Science and Engineering Statistics | NSF 26-309 a The preliminary data available from the agencies for FY 2025 at the time of this report reflect mainly the annualized continuing resolution funding levels that existed through early March 2025, which were later extended by a continuing resolution to the end of FY 2025. Note(s): Detail may not add to total because of rounding. Percent change is calculated on unrounded data. Source(s): Agencies' submissions to the Office of Management and Budget (OMB) per MAX Schedule C, agencies' budget justification documents, supplemental data obtained from agencies' budget offices, and Executive Office of the President, OMB, Budget of the United States Government, Fiscal Year 2026.