USDOT number vs MC number: which one does your trucking company need?
Two numbers, two different jobs. Which trucking companies need only a USDOT number, which need an MC number too, and what each one costs and commits you to.
The difference
| USDOT number | MC number (operating authority) | |
|---|---|---|
| What it is | A registration that identifies your company in FMCSA's safety systems | FMCSA's permission to haul regulated freight or passengers for hire across state lines |
| Who needs it | Interstate carriers of any kind, and intrastate carriers in most states, with a vehicle over 10,000 lbs GVWR or carrying placarded hazmat or 9+ passengers | For-hire carriers hauling regulated commodities interstate; brokers and freight forwarders (FF/MC numbers) |
| Who does not | Small intrastate vehicles in states that do not require it | Private carriers hauling their own goods; carriers of exempt commodities (most unprocessed agricultural products); intrastate-only carriers |
| Fee | No fee from FMCSA | A filing fee per authority type, paid to FMCSA |
| Before you can use it | Issued on registration | Register publication, the 21-day protest period, insurance filing (BMC-91 or BMC-91X), BOC-3 |
| Ongoing | MCS-150 update every two years | Insurance filing kept current; BOC-3 on file |
Which comes first
You get the USDOT number first, with the MCS-150 registration. If you also need authority, you apply for it under that USDOT number and a pending MC docket is assigned. One company, one USDOT number; a company can hold more than one authority (for example motor carrier and broker) under it. FMCSA has been consolidating identifiers around the USDOT number for years, but the docket, the Register notice and the insurance filings still run on the MC number, so you will use both.
Enter your USDOT number for a free launch checklist built from FMCSA's records: application, Register date, protest period, insurance filing, BOC-3, MCS-150 due date, UCR, Clearinghouse, ELD, IFTA/IRP and your new-entrant audit window, with an email when the status changes.
Free for carriers. USDOT numbers are public; nothing is sent until you ask. Agents set their own terms; CarrierDaily doesn't sell insurance or give insurance advice.
What each one costs
The USDOT number itself has no FMCSA fee. The authority application has a fee per authority type. Insurance is the real cost of a new authority, and the filing is what FMCSA waits for. Third-party filing services charge on top of FMCSA's fee; every filing can be made directly at FMCSA's site for the fee alone.
How to check yours
Look up either number in SAFER for the safety record and the active or inactive status, and in FMCSA's Licensing and Insurance pages for the docket, the insurance filing and the BOC-3. Or enter your USDOT number below for a checklist that reads all of them for you and emails you when the status changes.
Questions
Do I need an MC number to haul my own products?
No. Private carriers hauling their own goods need a USDOT number and must follow the safety rules, but they do not need operating authority.
I only run inside one state. Do I need an MC number?
No. Operating authority covers interstate for-hire transport. Your state may have its own intrastate authority or registration; check your state's commercial vehicle agency.
Is an MC number the same as a docket number?
In practice, yes: the MC number is your docket number with FMCSA. Brokers get an MC or FF docket as well.
Enter your USDOT number for a free launch checklist built from FMCSA's records: application, Register date, protest period, insurance filing, BOC-3, MCS-150 due date, UCR, Clearinghouse, ELD, IFTA/IRP and your new-entrant audit window, with an email when the status changes.
Free for carriers. USDOT numbers are public; nothing is sent until you ask. Agents set their own terms; CarrierDaily doesn't sell insurance or give insurance advice.
Track your own number free
Follow your USDOT number and we email you, at most once a day, when FMCSA records your insurance filing, your BOC-3, the end of the protest period or the grant. Stop with one click.
Open the free carrier checklist
Related guides
- How long does it take to get your MC authority?
- What to do after your MC number is approved
- Why you get so many calls after applying for an MC number
Sources and method. CarrierDaily analysis of public FMCSA data, Sep 22 to Oct 22 (30 feed days). Companies, not events: a published application already counted when filed is counted once. Source: Federal Motor Carrier Safety Administration data published on data.transportation.gov. CarrierDaily is not affiliated with or endorsed by FMCSA or the U.S. Department of Transportation.