What the FMCSA Requires
The Federal Motor Carrier Safety Administration regulates commercial motor carriers operating in interstate commerce. Insurance is one of the central regulatory requirements: motor carriers must carry minimum liability coverage, file proof of that coverage with the FMCSA, and maintain continuous coverage for as long as their operating authority is active. Without proof of insurance on file, the carrier cannot legally haul freight for hire.
The full federal insurance regime is in 49 CFR Part 387. This guide is a practical reference summarizing what most operators need to know. As of 2026, the minimums and filing requirements described here are current; verify against the eCFR for any specific compliance question.
FMCSA Liability Insurance Minimums
Source: 49 CFR 387.9, current as of 2026
The minimum liability coverage required for a for-hire interstate motor carrier depends on cargo type (49 CFR 387.9):
| Cargo Classification | Minimum Liability (CSL) |
|---|---|
| General freight (non-hazmat) over 10,001 lbs GVWR | $750,000 |
| Household goods movers | $750,000 |
| Oil transport (non-hazmat) | $1,000,000 |
| Hazardous substances and certain hazmat | $1,000,000 |
| Class A explosives, poison gases, certain radioactive materials (defined in 49 CFR 171.8) | $5,000,000 |
These are minimums. Most major shippers and brokers require coverage above the federal minimum, typically $1 million primary or higher. See commercial auto liability for more details.
FMCSA Cargo Insurance Minimums
The FMCSA's cargo insurance minimums apply only to household goods motor carriers (49 CFR 387.303):
- $5,000 per vehicle minimum
- $10,000 per occurrence minimum
General freight carriers have no federal cargo insurance requirement. The requirement that matters comes from brokers and shippers, who typically demand $100,000 or higher before tendering freight. See cargo insurance overview.
Insurance Filings
The FMCSA requires several specific filings to prove insurance compliance:
| Form | Purpose | Filed By |
|---|---|---|
| BMC-91 | Proof of public liability insurance (standard market) | Insurer |
| BMC-91X | Proof of public liability insurance (surplus lines) | Insurer (surplus broker) |
| BMC-34 | Proof of cargo insurance (household goods movers and freight forwarders) | Insurer |
| BMC-32 | Cargo liability endorsement (household goods policies) | Insurer |
| BOC-3 | Designation of process agents in each state of operation | Process agent or filing service |
Most operators encounter the BMC-91 (the proof-of-liability filing) and the BOC-3 (the process agent designation). For more on the BMC-91 specifically, see our BMC-91 filing guide. For more on the MCS-90 endorsement that goes with the BMC-91, see our MCS-90 endorsement guide.
How the Filing Process Works
The standard sequence for new motor carriers:
- Apply for FMCSA operating authority. Submit through the FMCSA Unified Registration System. You receive a USDOT number and MC number.
- Bind insurance. Get quotes, choose a carrier, and bind the policy. Your insurer needs your MC number and USDOT number to file.
- Insurer files BMC-91. The insurer submits the BMC-91 electronically to the FMCSA.
- FMCSA processes the filing. Typical processing time is 3 to 7 business days.
- Authority activates. Once the filing clears, your status on SAFER changes from "pending" to "active." You can legally start hauling for hire.
- File BOC-3. Designate a process agent in every state of operation. Most operators use a filing service that designates agents in all 50 states for a single fee.
For first-time motor carriers, see our new authority insurance guide for the full first-time process.
Maintaining Compliance
After your authority is active, you must continuously maintain insurance. Specific compliance points:
- Continuous coverage. No lapses. If your insurer cancels for non-payment or any other reason, the cancellation is filed with the FMCSA and your authority is placed in inactive status.
- Timely renewals. Set up auto-pay or calendar reminders. The FMCSA does not police renewals proactively, but a missed renewal that results in cancellation triggers a compliance issue.
- Proper limits. If you change cargo types (start hauling hazmat, for example), your liability minimum may increase. Update coverage before the change.
- Filing changes. Adding or changing insurers requires new BMC-91 filings. Coordinate with your agents to avoid gaps.
- Operational changes. Adding trucks, changing operating radius, adding hazmat endorsements, or other operational changes can affect underwriting and may require updates to filings.
Checking Your Insurance Status on SAFER
The FMCSA SAFER system is the public-facing FMCSA database. You can search by USDOT number, MC number, or company name to see your carrier snapshot. The snapshot includes:
- Operating authority status (active, pending, inactive, revoked)
- Insurance filing status (on file, not on file, expired)
- Insurer name and policy number
- Liability and cargo limits
- BOC-3 process agent information
- Inspection, crash, and out-of-service history (percentile CSA scores are not shown publicly)
- Crash and inspection history
Check SAFER any time you change insurers, after a renewal, or whenever you need to provide proof of compliance to a customer. SAFER is also used by brokers, shippers, and other carriers to verify your status before working with you.
What Happens If Insurance Lapses
The chain reaction of a lapse:
- Your insurer notifies the FMCSA of cancellation.
- The FMCSA places your authority in inactive status.
- You cannot legally haul freight for hire.
- Brokers and shippers see the inactive status on SAFER and stop tendering loads to you.
- To restore authority, you must bind new coverage and wait for the new BMC-91 to clear (3 to 7 business days).
- Repeat lapses can lead to revocation, which requires a fresh authority application and is a much harder path back to operating.
Avoiding lapses is one of the simplest compliance practices: set up auto-pay, calendar renewals, and notify your agent of any operational changes that could affect coverage.
Private Carrier Requirements
Private carriers (operators hauling their own goods) face different requirements:
- Must register with the FMCSA and obtain a USDOT number if operating interstate over 10,001 lbs GVWR
- Not required to obtain operating authority (no MC number)
- Not required to file BMC-91 or BMC-34
- Must still carry commercial auto liability per state requirements
- Subject to FMCSA safety regulations (Hours of Service, vehicle maintenance, driver qualifications)
Private carriers that decide to take on third-party freight become for-hire carriers and must complete the full registration and filing process. See our for-hire trucking insurance overview.
Do States Set Higher Requirements Than the FMCSA?
Sometimes, and the answer depends on whether you cross a state line. The FMCSA minimums in 49 CFR 387.9 apply to interstate carriers. Purely intrastate carriers, meaning you never leave the state, are regulated by that state instead, and the number can be different.
Texas is a useful example. An intrastate-only motor carrier hauling general freight needs a $500,000 combined single limit under Texas Transportation Code Chapter 643, lower than the $750,000 federal floor. Intrastate filings go to the TxDMV rather than the FMCSA.
Two things operators get wrong here, and both are expensive:
- One interstate load pulls you under the federal rule. The lower intrastate limit only holds if you stay inside the state. Cross a line once, even for a single backhaul, and you need interstate authority and the federal minimum. Hauling freight that is part of an interstate shipment can also count, even if your leg of it never leaves Texas.
- Your customers set a higher floor than the law does. Brokers and shippers routinely require $1 million in liability regardless of which minimum applies to you, so the statutory number is rarely the number you actually buy.
Requirements vary by state, so verify yours with that state's regulator before you rely on a lower limit. For the Texas detail, see our Texas truck insurance requirements guide.