What a DOT Number Search Tells You

A DOT number is a unique identifier assigned by the Federal Motor Carrier Safety Administration (FMCSA) to commercial motor carriers — companies and owner-operators who transport cargo or passengers across state lines. When you search for a DOT number, you get access to a carrier's safety record, inspection history, crash data, and whether they're currently authorized to operate.

The search is free and public. You can look up any carrier's DOT number through the FMCSA's Safety and Fitness Electronic Records (SAFER) system. This matters if you're a shipper vetting a trucking company, a driver considering employment, or someone involved in a crash with a commercial vehicle.

Key Takeaways

  • The FMCSA SAFER system at safercar.gov is the official place to search DOT numbers and view a carrier's safety record for free.
  • A DOT number search returns crash history, inspection violations, out-of-service orders, and whether the carrier is currently authorized to operate.
  • You can search by DOT number, company name, or driver's license number, depending on what information you have.
  • Safety ratings shown in SAFER are based on the carrier's performance over time and can affect insurance costs and business reputation.

How to Search the FMCSA SAFER System

Go to safercar.gov and click the "Search SAFER" button. You'll land on a search page with three options: search by DOT number, search by company name, or search by driver's license number. Choose whichever matches what you know about the carrier.

If you're searching by DOT number, enter the number in the field and click Search. If you're searching by company name, type the name (or part of it) and the system will show you matching carriers. The results page displays the carrier's legal name, operating status, address, and a link to view their full safety record.

Click on the carrier's name to open their detailed profile. This is where you'll see crash data, inspection violations, out-of-service orders, and their safety rating. The page also shows whether the carrier is currently authorized, has any pending safety audits, or has been placed out of service by the FMCSA.

Understanding What the Search Results Show

The carrier profile page displays several categories of information. Operating status tells you whether the carrier is currently authorized to operate, has been placed out of service, or has had their authority revoked. Safety rating shows whether the carrier meets, exceeds, or falls below federal safety standards based on their crash and inspection history.

The crash information section lists crashes involving the carrier's vehicles over the past two years, including the date, location, and whether anyone was injured or killed. The inspection violations section shows roadside inspections and what violations were found — things like brake defects, logbook violations, or driver qualification issues.

Out-of-service orders indicate that the FMCSA has prohibited the carrier from operating until specific safety violations are corrected. These are serious and mean the carrier cannot legally operate until they fix the problems and pass a follow-up inspection.

What to Do If You Find Safety Violations

If you're a shipper and the carrier you're considering has multiple crashes or serious violations, you can choose not to use them. If you're a driver considering employment with that carrier, the violations are a red flag — they suggest the company may not maintain equipment properly or enforce safe driving practices.

If you've been in a crash with a commercial vehicle and want to check the carrier's history, the SAFER search results can support an insurance claim or legal case. Print or save the carrier's profile page as documentation of their safety record at the time of the incident.

If you believe a carrier is operating unsafely or illegally, you can file a complaint with the FMCSA through their website. Complaints are reviewed and can trigger safety audits or investigations.

DOT Number vs. MC Number: What's the Difference

A DOT number and an MC number (Motor Carrier number) are not the same thing. A DOT number is issued by the FMCSA and tracks safety and compliance. An MC number is issued by the FMCSA's Office of Motor Carriers and authorizes a carrier to operate for hire. Some carriers have both; some have only one.

The SAFER system searches by DOT number. If you only have an MC number, you can search the FMCSA's Licensing and Insurance system (LIIS) at liis.fmcsa.dot.gov instead. That system lets you search by MC number and will show you the carrier's insurance status and operating authority.

Common Reasons a DOT Number Search Might Not Return Results

If you search for a carrier and get no results, the most common reason is that the carrier does not operate across state lines. The FMCSA only regulates interstate commerce, so intrastate carriers (those operating only within one state) do not have DOT numbers and will not appear in SAFER.

Another reason is a typo in the DOT number or company name. Try searching again with a slightly different spelling or just the first few words of the company name. If the carrier recently went out of business or had their authority revoked, they may still appear in the system but with an inactive status.

If you have an MC number but no DOT number, use the LIIS system instead. If you're still unable to find the carrier, contact the FMCSA directly at 1-800-832-5660 or through their website.

Frequently Asked Questions

Can I search for a DOT number if I only know the driver's name?

Not directly through SAFER. The system searches by DOT number, company name, or driver's license number. If you know the driver's license number, you can search by that. Otherwise, you'll need to find out the carrier's company name or DOT number first.

How often is the SAFER data updated?

The FMCSA updates SAFER regularly, but there can be a lag of several days to a few weeks between when an inspection or crash is reported and when it appears in the system. The data is not real-time.

What does "out of service" mean?

Out of service means the FMCSA has prohibited the carrier from operating until they fix specific safety violations and pass a follow-up inspection. A carrier with an out-of-service order cannot legally operate commercial vehicles.

Is the SAFER search the same as checking a carrier's insurance?

No. SAFER shows safety and compliance history. To verify that a carrier has active insurance, use the LIIS system at liis.fmcsa.dot.gov or ask the carrier directly for proof of insurance.

Can I use SAFER to check on a carrier before hiring them to move my household goods?

Yes. SAFER is useful for any interstate carrier. For household goods movers specifically, you can also check the Federal Motor Carrier Safety Administration's list of registered household goods carriers, which includes additional information about complaints and claims.