History
Publication of Title 49 began in 1938, at which point it was entitled Transportation and Railroads. It was renamed in 1949 to Transportation.[1]
Current structure
The table of contents, as reflected in the e-CFR updated February 18, 2014, is as follows:[2]
| Volume | Chapter | Parts | Regulatory Entity |
| 1 | | 1-99 | Subtitle A--Office of the Secretary of Transportation |
| 2 | I | 100-177 | Pipeline and Hazardous Materials Safety Administration, Department of Transportation |
| 3 | | 178-199 | Pipeline and Hazardous Materials Safety Administration, Department of Transportation |
| 4 | II | 200-299 | Federal Railroad Administration, Department of Transportation |
| 5 | III | 300-399 | Federal Motor Carrier Safety Administration, Department of Transportation |
| 6 | IV | 400-499 | United States Coast Guard, Department of Homeland Security |
| V | 500-571 | National Highway Traffic Safety Administration, Department of Transportation |
| 7 | | 572-599 | National Highway Traffic Safety Administration, Department of Transportation |
| VI | 600-699 (GPO) | Federal Transit Administration, Department of Transportation |
| VII | 700-799 | National Railroad Passenger Corporation (Amtrak) |
| VIII | 800-999 | National Transportation Safety Board |
| 8 | X | 1000-1199 | Surface Transportation Board, Department of Transportation |
| 9 | | 1200-1399 | Surface Transportation Board, Department of Transportation |
| XI | 1400-1499 [Reserved] | Research and Innovative Technology Administration, Department of Transportation |
| XII | 1500-1699 | Transportation Security Administration, Department of Homeland Security |
References
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- Headquarters: 1200 New Jersey Avenue SE (Transportation Department Building)
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Deputy Secretary of Transportation | | |
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Under Secretary of Transportation for Policy |
- Office of the Assistant Secretary for Transportation Policy
- Office of the Chief Economist
- Office of Policy Development, Strategic Planning and Performance
- Office of Infrastructure Finance and Innovation
- Office of the Assistant Secretary for Aviation and International Affairs
- Office of International Transportation and Trade
- Office of International Aviation
- Office of Aviation Analysis
- Office of the Assistant Secretary for Research and Technology
- National Surface Transportation and Innovative Finance Bureau
- Office of the Assistant Secretary for Budget and Programs and Chief Financial Officer
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