Primary liability covers a truck while it hauls under a motor carrier’s authority. Non-trucking liability, often called bobtail insurance, covers a leased owner-operator’s truck when it is used outside that carrier’s dispatch, such as personal driving.
Assurance Group of America is an independent commercial truck insurance agency headquartered in Florida and licensed in FL, GA, IN, MS, NC, OH, PA, SC, SD, TN and VA. This guide explains how the two coverages fit together for owner-operators. It is general information, not coverage advice; the policy and your lease control.
Key facts
- Under a lease, the motor carrier takes exclusive possession, control and use of your truck and complete responsibility for its operation for the lease term (49 CFR 376.12(c)).
- The lease must state who provides any other insurance, such as bobtail coverage, and any amount charged back to you (49 CFR 376.12(j)).
- If you run under your own authority, you need your own primary liability filing; non-trucking liability does not replace it.
- Neither coverage repairs your own truck. That is physical damage coverage.
What does primary liability cover?
Primary liability pays for bodily injury and property damage you cause to others while operating as a motor carrier. It is the coverage federal rules require, starting at $750,000 for most for-hire freight trucks rated 10,001 lbs or more (see the federal liability minimums).
Whoever holds the operating authority carries it. If your MC number is your own, the primary liability policy and its federal filing are yours. If you are leased to a carrier, that carrier’s primary policy covers your truck while you work for it.
What is non-trucking liability, and when does it apply?
Non-trucking liability covers an owner-operator’s truck when it is used for non-business purposes, outside the motor carrier’s dispatch. Typical examples are driving home on a day off or taking the tractor to a personal errand.
It is designed to sit next to the carrier’s primary policy, not to overlap it. When the truck is working for the carrier, the carrier’s primary liability is meant to respond. When it is not, non-trucking liability is meant to respond.
Policy wording decides the edges. Some policies exclude any trip that serves a business purpose, even if no load is attached, so read the definitions section.
Is bobtail insurance the same thing as non-trucking liability?
People use the two names for the same idea, but older bobtail policies focused on whether a trailer was attached, while non-trucking policies focus on whether the truck is under dispatch. The difference matters when you are pulling no trailer but still running a business errand.
Federal rules use the word “bobtail” in the lease section: the lease must say who provides “any other insurance coverage for the operation of the leased equipment, such as bobtail insurance” (49 CFR 376.12(j)(1)).
When you compare quotes, ask which trigger the policy uses: dispatch status, trailer status, or both.
| Situation | Coverage usually involved | Who usually provides it |
|---|---|---|
| Hauling a load under your own authority | Primary liability | You (your policy, your federal filing) |
| Hauling a load while leased to a carrier | Primary liability | The motor carrier |
| Personal use of a leased truck, off dispatch | Non-trucking liability (bobtail) | Often the owner-operator; the lease must say |
| Damage to your own truck, any situation | Physical damage | The truck owner or lender requirement |
What does my lease agreement have to say about insurance?
The lease must clearly state the carrier’s legal duty to maintain public liability coverage, and who is responsible for any other insurance, such as bobtail coverage. If the carrier charges you back for insurance, the lease must list the amount (49 CFR 376.12(j)(1)).
If you buy insurance from or through the carrier, the lease must say the carrier will give you a copy of each policy on request, and a certificate of insurance for each policy (49 CFR 376.12(j)(2)).
Keep a signed copy of the lease. It is the first document an agent will ask for when quoting non-trucking or physical damage coverage.
Do I need non-trucking liability if I have my own authority?
No. Non-trucking liability is built for leased owner-operators. With your own authority, your primary liability policy covers your trucking operations, and it is the policy your insurer files with the federal government.
Some owner-operators switch between running under their own authority and leasing on. Each change affects which policy has to be in force, so tell your agent before you switch.
What happens if I’m driving home after a delivery?
It depends on your lease and the policy wording. Some leases treat the trip home after a delivery as part of the carrier’s dispatch; others do not, and some non-trucking policies exclude any trip that benefits the carrier.
This is the most common gray area in owner-operator coverage. Ask the carrier how it defines dispatch, and ask your agent how the non-trucking policy defines business use.
What other coverages do leased owner-operators carry?
Beyond non-trucking liability, leased owner-operators commonly carry physical damage for their tractor and occupational accident coverage. Occupational accident coverage is often a carrier requirement for independent contractors who are not covered by the carrier’s workers’ compensation.
The leased-on owner-operator section of our Trucking Operations Guide lists what underwriters look at for this setup.
How do I set up the right mix of coverage?
Gather your paperwork, then let an agent match coverage to how you actually run.
- Get a signed copy of your lease and highlight the insurance section.
- Ask the carrier for a certificate showing its primary liability policy.
- Write down how you use the truck off dispatch: trips home, personal errands, weekends.
- Call an agent to quote non-trucking liability, physical damage and any coverage your carrier requires.
Talk to an agent about your lease and coverage
A licensed agent at Assurance Group of America can review how you run and shop non-trucking, physical damage and other coverages with several carriers. Se habla español.