About DOT Meet the Secretary Mission Newsroom Social Media Leadership Regulations Transit Benefit Policy Careers Contact Us Operating Administrations FAA FHWA FMCSA FRA FTA GLS MARAD …

Feb 25, 2021 · Contact Us Call Us DOT Customer Service Center: 202-366-4000* Monday through Friday between 8:30 am and 5:30 pm Eastern Time excluding Federal Holidays. Mail Us …

Aug 28, 2025 · MOST REQUESTED INFORMATION Rulemaking Requirements The Rulemaking Process HELPFUL REGULATORY LINKS Regulations.gov Federal Register RegInfo.gov eCFR …

Jan 12, 2023 · This web portal is a searchable, indexed database, that contains all guidance documents issued by DOT and its nine operating administrations that are in effect today.

Grant List View all of DOT's grant programs for the Infrastructure Investment and Jobs Act.

Federal Motor Carrier Safety Administration (FMCSA) Responsible for regulating and providing safety oversight of commercial motor vehicles.

Transportation Security Administration (TSA) Exists to protect the nation's transportation systems to ensure freedom of movement.

Dec 19, 2025 · Sean McMaster - FHWA Administrator Federal Highway Administration Sean McMaster is the Administrator of the Federal Highway Administration (FHWA) at the U.S. Department of …

Jan 15, 2025 · DOT’s investigation found that Southwest operated two chronically delayed flights – one between Chicago Midway International Airport and Oakland, Calif, and another between Baltimore, …

DOT Careers in Demand See careers currently in demand at DOT and why you'll be a great fit