Trucking Insurance Coverages: What Each Policy Does and How They Differ

The Short Answer

Trucking insurance is not one policy. It is a set of separate coverages for commercial trucks and the businesses that run them. In the US, one of these, primary auto liability, is legally required for motor carriers operating under their own authority. Shippers, brokers, lenders or a carrier you lease to may require others. The rest are optional coverages that protect your truck, your cargo and your business.

Which coverages you need depends on how you operate. The biggest factor is whether you run under your own operating authority or are leased onto another motor carrier. What you haul, whether you cross state lines and the terms of any lease or financing agreement also matter.

Required Coverage: Primary Auto Liability

Primary auto liability pays for bodily injury and property damage your truck causes to other people in an accident. It does not pay to repair your own truck or replace your load. For interstate for-hire carriers, the Federal Motor Carrier Safety Administration (FMCSA) sets minimum liability amounts under its financial responsibility rules. Those minimums vary with the type of cargo, and hazardous materials carry higher requirements than general freight. States may impose their own requirements on intrastate operations.

The source material for this article did not confirm current minimum dollar amounts. Check the figures that apply to your operation with the FMCSA or your state's motor carrier authority before you buy. Many shippers and brokers also require limits above the legal minimum.

Interstate for-hire carriers commonly need an MCS-90 endorsement attached to the liability policy. This endorsement guarantees that injured members of the public can be compensated up to the federal minimum, even if the policy would otherwise exclude the claim. The insurer may then seek repayment from the carrier. It protects the public, not the trucking business.

Coverages That Protect the Truck and the Load

Physical damage: pays to repair or replace your own tractor or trailer. It usually combines collision (damage from crashes) and comprehensive (theft, fire, vandalism, weather and similar non-collision losses). Lenders typically require it on financed equipment. Motor truck cargo: covers the freight you are hauling if it is damaged or lost during transport, subject to the policy's listed exclusions and commodity limits. Shippers and brokers often require proof of it. Reefer breakdown: an add-on to cargo coverage for refrigerated loads that spoil because the refrigeration unit fails. Not every cargo policy includes it automatically. Trailer interchange: covers damage to a trailer you do not own while it is in your possession under a written trailer interchange agreement.

Coverages for Leased Owner-Operators

An owner-operator leased to a motor carrier usually runs under that carrier's primary liability while under dispatch. That leaves a gap when the truck is used outside of dispatch, and two coverages are sold to fill it. They are often confused.

Non-trucking liability: covers liability when the truck is used for personal, non-business purposes, such as driving it home on a day off. It generally does not apply when the truck is under dispatch or working for the carrier. Bobtail liability: covers liability when the tractor is driven without a trailer. Depending on the policy wording, that can include some business-related bobtail trips, such as heading to pick up a load.

Insurers do not define these two products identically. Some use the names interchangeably. Read the policy wording, and compare it with your lease agreement, to confirm which situations are actually covered.

Business and People Coverages

General liability: covers non-driving liability, such as an injury at your terminal or damage caused while loading at a customer's dock. Auto liability does not cover these situations. Workers' compensation: covers employees injured on the job. Requirements are set by each state. Occupational accident: an alternative some independent contractors buy because they are not covered by an employer's workers' compensation. The benefits and structure differ from workers' compensation. Uninsured/underinsured motorist: pays for your injuries or damage when the at-fault driver has no insurance or too little. Availability and requirements vary by state.

How the Main Coverages Compare

Coverage | What it protects | Typically required by; Primary auto liability | Other people's injuries and property | Federal or state law (own authority); Physical damage | Your own truck and trailer | Lenders and lessors; Motor truck cargo | Freight in your care | Shippers, brokers, contracts; Non-trucking or bobtail liability | Liability outside dispatch or without a trailer | Motor carrier lease agreements; General liability | Non-driving business liability | Some customers and facilities; Workers' compensation | Injured employees | State law

Next Steps and What This Overview Does Not Cover

First, determine whether you will operate under your own authority or be leased onto a carrier. That decides whether primary liability is your responsibility. Then gather your requirements in writing from regulators, your lender, your lessor and your main customers. Use that list as the baseline when comparing quotes.

The evidence available for this article did not include confirmed premiums, deductibles, regulatory dollar minimums or insurer-specific terms. It cannot say what coverage will cost or which insurer offers the best terms. For those details, check current regulatory sources and speak with an insurance agent or broker who specializes in commercial trucking.