Home / USDOT vs MC
Concierge Compliance CareUSDOT Number vs MC Number: What Each One Is For
New carriers often hear "DOT and MC" in one breath. They are two different registrations with two different purposes, and many operations need only the first one.
Not a government site. This site is not affiliated with FMCSA, the U.S. Department of Transportation, Login.gov, or any government agency. You can register with FMCSA yourself at motus.dot.gov, and there is no FMCSA charge for a USDOT number. Paid filing help from us is optional.
Rather not deal with this? Hand it to a Personal Compliance Specialist.
Talk to a Personal Compliance SpecialistWhat a USDOT number is
FMCSA describes the USDOT number as a unique identifier used when it collects and monitors a company's safety information from audits, compliance reviews, crash investigations and inspections. Whether you need one depends on the tests on Do you need a DOT number?
What operating authority (an MC number) is
Operating authority is a separate registration. According to FMCSA's Get Operating Authority page, companies generally need it in addition to a USDOT number if they:
- transport passengers in interstate commerce for a fee or other compensation; or
- transport federally regulated commodities owned by others, or arrange for their transport, for compensation in interstate commerce.
Authority is often identified as an MC, FF or MX number depending on the type. A company may need more than one type of authority.
Who typically needs both
For-hire interstate carriers of regulated freight or passengers usually need a USDOT number and operating authority. Brokers and freight forwarders need authority too. FMCSA lists private carriers hauling their own cargo, and for-hire carriers hauling only exempt commodities, among those that do not need authority. The USDOT Wizard sorts this out for a specific operation.
Fees
- USDOT number: FMCSA says there is no charge.
- Operating authority: FMCSA lists a one-time fee of $300 for each type of authority sought, and says filing fees are non-refundable. Reinstating revoked authority is listed at $80.
We checked these figures on fmcsa.dot.gov on November 15, 2026. Fees can change, so check FMCSA's fee FAQ before you file.
You apply for both in Motus
FMCSA's Move into Motus page says new registrants use Motus at motus.dot.gov to apply for a USDOT number and/or operating authority. It is one system, but still two registrations.
FMCSA has also proposed eventually dropping new MC numbers and identifying each type of registration with a suffix on the USDOT number. Its Registration Modernization FAQs say this is under consideration, did not take effect with the first Motus release, and would not replace existing MC numbers.
After you apply
Authority is not active the moment you apply. FMCSA requires a BOC-3 process-agent designation and proof of insurance on file before authority is granted, and your insurer files the insurance proof directly with FMCSA. We do not promise a timeline; see How long does it take to get a DOT number? for what FMCSA has published.
Want help preparing the application itself? Our sister site dotnumberapplication.com offers optional, paid application prep. You can always file yourself for free.
What the filing work involves
- A Login.gov account and identity verification with a photo ID and a photo of yourself
- A Motus company account and the USDOT application itself
- An MCS-150 update every 24 months, and whenever your details change
- Operating authority (OP-1) if you haul regulated freight for others across state lines, with a filing fee per authority type
- A BOC-3 process-agent filing and insurance filed by your insurer before authority is granted
- UCR registration every year if you operate interstate
That is a lot to keep straight. Want a specialist to handle it?
Talk to a Personal Compliance SpecialistDo it yourself, or hand it off
Do it yourself
- Free at FMCSA for the USDOT number; you file in Motus yourself.
- You set up Login.gov, complete identity verification and answer every application question.
- You choose the authority type yourself; FMCSA filing fees are non-refundable.
- You line up the BOC-3 and insurance filings and track MCS-150 and UCR dates.
Have a Personal Compliance Specialist handle it
- A specialist reviews your operation and tells you which filings apply.
- We prepare the USDOT, operating authority, UCR and MCS-150 filings for your review and submit them.
- We coordinate the BOC-3 with a process agent and track filings until they show on your record.
- You still complete identity verification yourself. Our service fee is separate from government fees.
Frequently asked questions
Is a DOT number the same as an MC number?
No. The USDOT number identifies your company for safety monitoring. Operating authority, often called an MC number, is a separate registration for certain for-hire interstate operations.
Can I get an MC number without a USDOT number?
New applicants register in Motus for a USDOT number and/or operating authority. Do not plan on skipping the USDOT number. See Move into Motus.
How much does each cost?
FMCSA does not charge for a USDOT number. It lists operating authority at $300 per type of authority, non-refundable. Check FMCSA's fee FAQ before you file in case the figure changes.
How long does authority take compared with a USDOT number?
Authority has historically taken longer, because it involves review and requires a BOC-3 and insurance filings before it is granted. FMCSA's published timing predates Motus, so we do not quote a number of days.
Will FMCSA stop issuing MC numbers?
FMCSA has proposed it, but its FAQs say the change did not take effect with the first Motus release, and existing MC numbers would not be replaced.
Still not sure what applies to you? Ask a specialist.
Talk to a Personal Compliance SpecialistRelated guides
- How to get a DOT number, step by step
- Do You Need a DOT Number?
- How to Get a DOT Number for Free
- How Long Does It Take to Get a DOT Number?
- Do You Need a DOT Number If You Are Not For Hire?
Sources
Checked on fmcsa.dot.gov on November 15, 2026. FMCSA pages change; confirm details at the source before you file.