Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The latest general information on the Coronavirus Disease 2019 (COVID-19) is available on Coronavirus.gov. For USDOT specific COVID-19 resources, please visit our page.

Glossary of Acronyms

Acronym Meaning
BCA Benefit-Cost Analysis
DOT Department of Transportation
FAA Federal Aviation Administration
FHWA Federal Highway Administration
FMCSA Federal Motor Carrier Safety Administration
FRA Federal Railroad Administration
FTA Federal Transit Administration
MARAD Maritime Administration
NEPA National Environmental Policy Act
NOFO Notice of Funding Opportunity
NHTSA National Highway Transportation Safety Administration
OA Operating Administration
OIG Office of the Inspector General
OST Office of the Secretary of Transportation
PHMSA Pipeline and Hazardous Materials Administration
R.O.U.T.E.S. Rural Opportunities to Use Transportation for Economic Success
SLSDC Saint Lawrence Seaway Development Corporation
TIFIA Transportation Infrastructure Finance and Innovation Act
USDOT United States Department of Transportation

 

Last updated: Friday, February 26, 2021