What Is a
US DOT Number?
Think of a USDOT (Department of Transportation) number as a professional Social Security number for your trucking business. It's a unique ID that the government uses to keep track of who you are and how safely you drive.
What is it?
Your Federal Carrier Identifier
The US DOT Number is issued by the Federal Motor Carrier Safety Administration or FMCSA to companies operating commercial vehicles. It serves as the government's primary tool for monitoring and enforcing safety regulations across the trucking and transportation industry.
If you're involved in both intrastate and interstate commerce — or meet specific criteria such as transporting hazardous materials or operating vehicles above certain weight limits — obtaining a US DOT Number is mandatory.
Your permanent safety report card
Safety Tracking: It's how the DOT monitors your inspections, crashes, and audit results.
Legal Permission: Without an "Active" status, you cannot legally pick up loads or operate on public roads.
Business Credibility: Brokers and insurance companies use this number to check your "score" before they decide to work with you.
In short: It's your legal license to operate and your permanent safety report card.
You need one if your operation involves any of the following
Vehicles with a gross vehicle weight rating (GVWR) over 10,000 lbs — the combined total weight of truck, trailer, and load
Transporting hazardous materials in quantities that require placards under federal regulations
Operating vehicles that carry 9 or more passengers for compensation, or 16 or more passengers not for compensation
Without a valid US DOT Number, your business could face fines, operational delays, or suspension. Don't risk your livelihood — get compliant today.
Intrastate vs. Interstate
Intrastate
If you want to work only in your domicile state, a US DOT Number is all you need to operate legally.
Interstate
If you want to cross state borders and work all over the country, you will also need an MC Number (Operating Authority) in addition to your DOT Number.
Get Your US DOT Number
- FMCSA-compliant submission
- US DOT Number registration
- Expert support
- No hidden fees
