Interstate Carrier ResourcesDo Private Carriers Need an MC Number? What a Private Motor Carrier Actually Files
Reviewed by Austin Park, founder of ICR Filings · Updated October 29, 2026
- A private motor carrier hauls its own goods. FMCSA says it needs a USDOT number but not operating authority (an MC number).
- No operating authority means no authority to suspend or reinstate, and no BOC-3 under the rule in force, with one narrow exception.
- Interstate private carriers of property still owe UCR every year and the biennial MCS-150 update.
- Haul someone else's goods for pay and you are a for-hire carrier, which does need operating authority.
Plenty of businesses run trucks without ever hauling freight for anyone else: contractors moving their own equipment, farms and nurseries delivering their own product, distributors running their own routes. FMCSA calls these private motor carriers, and the filings they need are shorter than a for-hire trucking company's. Knowing which ones apply keeps you from paying for filings you do not need, and from missing the ones you do.
What counts as a private motor carrier
FMCSA's answer is short: a private motor carrier transports its own cargo, usually as part of a business that produces, uses, sells, or buys what is being hauled. The regulations define it the other way around: a private motor carrier is one that is not a for-hire carrier, and a for-hire carrier is one that transports goods or passengers for compensation (49 CFR 390.5).
- Private: a landscaping company hauling its own mowers and mulch to job sites.
- Private: a lumber yard delivering lumber it sold to its customers.
- For-hire: the same truck hauling another company's lumber for a fee.
What FMCSA says you need
FMCSA states it directly: a private motor carrier is required to have a USDOT number but does not need operating authority. Its page on operating authority lists private carriers first among the carriers not required to have an MC number, along with for-hire carriers hauling only exempt commodities and carriers working only inside an exempt commercial zone.
| Filing | Interstate private carrier, 10,001 lbs or more |
|---|---|
| USDOT number | Required |
| MCS-150 biennial update | Required, every two years on your USDOT number's schedule |
| UCR | Required every year for interstate private carriers of property |
| Operating authority (MC number) | Not required |
| BOC-3 | Not required, except for trips between points in a foreign country through the US |
Your state may add its own rules on top. Many states require a USDOT number even for trucks that never leave the state. See which states require a USDOT number for intrastate carriers.
When the USDOT number applies
The federal USDOT requirement covers interstate commerce in a vehicle that has a weight rating or weight of 10,001 lbs or more, carries more than 8 passengers for compensation or more than 15 without, or hauls hazmat in placarded quantities. Interstate is broader than crossing a state line: freight that started in another state or is headed to one can make a trip interstate even when your truck stays home. Interstate vs intrastate, explained.
The BOC-3 question
The BOC-3 names process agents, people who can accept legal papers for you in each state. Under the version of 49 CFR Part 366 in force today, a motor carrier designates agents for each state in which it is authorized to operate. Private carriers do not hold operating authority, so the BOC-3 generally does not apply to them. The rule's one exception: every motor carrier, private carriers included, that runs through the United States between points in a foreign country designates an agent for each state it crosses.
"Reinstatement" does not apply to you
If you are searching for how to reinstate your authority as a private carrier, check what is actually inactive. There is no MC authority to suspend or reinstate. What can go inactive is the USDOT number itself, most often because the biennial MCS-150 update was missed. That is fixed with an MCS-150 update or reactivation, not an authority reinstatement. Look up your USDOT number to see its status, and read what to do about an inactive USDOT number.
When you stop being a private carrier
The line is compensation for hauling someone else's goods. Once you do that across state lines with federally regulated freight, you are a for-hire carrier and need operating authority, which brings the BOC-3 and an insurance filing with it. If that is your plan, start with how to get an MC number.
Not sure which bucket you are in? The free filing checker asks a few questions and lists what applies, including what your FMCSA record already shows.
Common questions
Does a contractor hauling its own equipment need an MC number?
Generally no. Moving your own equipment and materials for your own business is private carriage. You still need a USDOT number if the vehicle is 10,001 lbs or more and the trip is interstate, and your state may require one even for in-state trips.
Do private carriers pay UCR?
Yes, if they are interstate carriers of property. The UCR Plan's own FAQ lists interstate motor private carriers of property among the carriers its fees apply to.
Can a private carrier have its authority suspended or revoked?
There is no operating authority to suspend, because a private carrier does not need one. What can go inactive is the USDOT number, most often after a missed biennial MCS-150 update.
Do private carriers need a BOC-3?
Under the version of 49 CFR Part 366 in force, motor carriers file process agents for the states where they are authorized to operate, which private carriers are not. The exception is a private carrier running between points in a foreign country through the United States, which designates an agent for each state it crosses.
What if I sometimes haul for other companies?
Hauling someone else's goods for compensation is for-hire carriage. If those loads are federally regulated and interstate, you need operating authority for them, along with the BOC-3 and insurance filing that come with it.
Official sources
- FMCSA: What is a private motor carrier?
- FMCSA: What is operating authority and who needs it?
- FMCSA: Do I need a USDOT number?
- 49 CFR 390.5: definitions (commercial motor vehicle, interstate and intrastate commerce, private and for-hire carrier)
- 49 CFR Part 366: designation of process agent (BOC-3)
- UCR Plan: frequently asked questions
This guide is general information, not legal advice. Rules and fees change, so confirm with the official source before you file.
Related guides
- FMCSA Exempt Commodities: What You Can Haul Without an MC Number
- DOT Physical and Medical Card: Who Needs One, What to Expect, and How Long It Lasts
- DOT Audit: What a Compliance Review Checks, and How FMCSA Sets Your Safety Rating
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