Chapter 1 — Organization
- §101 Purpose
- §102 Department of Transportation
- §103 Federal Railroad Administration
- §104 Federal Highway Administration
- §105 National Highway Traffic Safety Administration
- §106 Federal Aviation Administration
- §107 Federal Transit Administration
- §108 Pipeline and Hazardous Materials Safety Administration
- §109 Maritime Administration
- §110 Great Lakes St. Lawrence Seaway Development Corporation
- §111 Repealed.
- §112 Repealed.
- §113 Federal Motor Carrier Safety Administration
- §114 Transportation Security Administration
- §115 Transportation Security Oversight Board
- §116 National Surface Transportation and Innovative Finance Bureau
- §117 Council on Credit and Finance
- §118 Office of Multimodal Freight Infrastructure and Policy
- §119 Advanced Research Projects Agency–Infrastructure