| OMB Prefix | Agency | Code |
|---|
| 2100 |
Department of Transportation |
DOT |
| 2105 |
Office of the Secretary |
OST |
| 2106 |
Office of the Secretary - Aviation |
OSTA |
| 2110 |
Transportation Security Administration |
TSA |
| 2115 |
U.S. Coast Guard |
USCG |
| 2120 |
Federal Aviation Administration |
FAA |
| 2125 |
Federal Highway Administration |
FHWA |
| 2126 |
Federal Motor Carrier Safety Administration |
FMCSA |
| 2127 |
National Highway Traffic Safety Administration |
NHTSA |
| 2130 |
Federal Railroad Administration |
FRA |
| 2132 |
Federal Transit Administration |
FTA |
| 2133 |
Maritime Administration |
MARAD |
| 2135 |
Saint Lawrence Seaway Development Corporation |
SLSDC |
| 2137 |
Pipeline and Hazardous Materials Safety Administration |
PHMSA |
| 2138 |
Bureau of Transportation Statistics - Aviation |
BTSA |
| 2139 |
Research and Innovative Technologies Administration |
RITA |
| 2140 |
Surface Transportation Board |
STB |
| 2145 |
Pipeline and Hazardous Materials Safety Administration |
PHMSA |
| 2150 |
Research and Innovative Technologies Administration (Old) |
RITA |
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