What Is UCR?
The Unified Carrier Registration (UCR) program is a federally mandated system that requires individuals and companies involved in interstate transportation to register annually and pay a fee based on fleet size.
UCR is governed by the Unified Carrier Registration Plan and applies to carriers operating in interstate commerce across participating U.S. states.
The program helps fund state enforcement of motor carrier safety regulations.
Who Must File UCR in Mississippi?
If your business is based in Mississippi and operates in interstate commerce, you likely must file UCR.
You must register if you are:
1. Motor Carriers
Companies or owner-operators that transport property or passengers across state lines using commercial motor vehicles.
2. Freight Brokers
Businesses that arrange transportation of goods but do not operate trucks themselves.
3. Freight Forwarders
Companies that consolidate shipments and coordinate freight movement.
4. Leasing Companies
Businesses that lease commercial motor vehicles used in interstate commerce.
Even if your company operates only one truck, you are still required to register if you engage in interstate transportation.
Do Intrastate Carriers in Mississippi Need UCR?
Generally, no. If your company operates strictly within Mississippi and does not cross state lines, UCR registration is not required.
However, if you:
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Haul loads that originate or end outside Mississippi
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Transport goods as part of interstate commerce
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Operate under federal authority
You must file UCR.
The Mississippi Department of Public Safety may verify UCR compliance during roadside inspections or audits.
UCR Fees in Mississippi
UCR fees are based on the number of commercial motor vehicles you operate in interstate commerce.
| Fleet Size | Annual Fee (Example Range) |
|---|---|
| 0–2 vehicles | Lowest tier fee |
| 3–5 vehicles | Higher tier |
| 6–20 vehicles | Mid-level tier |
| 21+ vehicles | Highest tiers |
Fees are set annually at the federal level and apply equally across participating states.
UCR Registration Deadline
UCR registration must be completed annually, typically by December 31 for the upcoming registration year.
Example:
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2026 UCR must be filed by December 31, 2025.
Late registration may result in:
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Penalties
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Fines
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Enforcement stops
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Registration holds
How to File UCR in Mississippi
You can file UCR online through the UCR portal at www.fmcsa.me
To register, you’ll need:
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Your USDOT number
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Legal business name
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EIN or SSN
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Fleet size information
Once registered, you do receive a digital certificate, and your compliance status is recorded electronically.
What Happens If You Don’t File UCR?
Failure to register can lead to:
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State enforcement penalties
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Civil fines
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Delays in operating authority
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Roadside violations
Mississippi enforcement officers can check your UCR status electronically during inspections.
Key Takeaways
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UCR is required for interstate motor carriers, brokers, freight forwarders, and leasing companies.
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Mississippi-based businesses operating across state lines must file annually.
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Fees are based on fleet size.
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Deadline is typically December 31 each year.
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Non-compliance can result in fines and operational disruptions.
Final Thoughts
If you operate in interstate commerce from Mississippi, UCR registration is not optional—it’s a federal compliance requirement under the Unified Carrier Registration Plan.
Whether you're an owner-operator with one truck or manage a large fleet, filing UCR on time ensures your business remains compliant and avoids costly penalties.
If you're unsure whether your company qualifies, consult a compliance professional or verify your status using your USDOT number.