Do I need a USDOT number?
How do I get a USDOT number/Operating Authority?
Safer Buses--Look before you Book!
Motor carrier safety records
How to file a complaint
How to register an airplane
Commerical space transportation licenses
How to change your Airmen Certification Number
How to report an incident
Where to find Pipelines and Hazmat regulations
Special Permits and Approvals
General law duties and responsibilities
Permits and State Waivers
Inspections and Enforcement
High Speed Rail Program
Safety Fact Sheet
Accident data and reporting
eLibrary of Fact Sheets