Commercial auto insurance in Massachusetts: requirements and coverage.

When your business needs a commercial auto policy

Start with the ownership test. According to the Insurance Information Institute, if a vehicle is owned by a business there is no coverage under a personal auto policy. And if a vehicle is used primarily in business, there is likely no coverage under a personal policy either. An insurer can deny a claim or cancel a personal policy when business use presents excessive risk.

The defense gap is the part owners miss. A personal auto policy will not defend or cover claims made against the business itself, only against you personally. Do not lean on a personal umbrella for business use of a vehicle either; the III warns against it directly.

A Businessowners Policy does not close this gap. BOPs provide no coverage for vehicles. So the auto exposure requires a separate commercial auto policy, and the standard form is the Business Auto Coverage Form (BACF). Under the BACF, “autos” includes cars, trucks, trailers, and vans designed for road use. If the company owns a vehicle, or a vehicle is primarily used in the business, you are in commercial auto territory. We place these policies directly through our Commercial Auto & Fleet practice.

Massachusetts compulsory limits on commercial vehicles

Massachusetts requires automobile insurance to register a vehicle, and four coverages are compulsory in at least the minimum amounts required by law. The CAR Commercial Automobile Insurance Manual confirms these apply to commercial risks, not just private passenger cars. All automobiles registered in Massachusetts are subject to the Compulsory Automobile Insurance Law, with narrow exceptions for government-owned vehicles, risks required to furnish security to the DPU such as public utilities and most buses, and street railway companies under public control.

The compulsory limits for commercial risks are Compulsory Bodily Injury at $25,000 per person and $50,000 per accident, Personal Injury Protection at $8,000 per person, Property Damage Liability at $30,000, and Uninsured Motorists at $25,000 per person and $50,000 per accident. Chapter 275 of the Acts of 2024 raised these minimums for motor vehicle liability policies issued or renewed on or after July 1, 2025, amending M.G.L. c.90 s.34A, and the act does not carve out commercial vehicles. DOI Filing Guidance Notice 2025-A applied the same figures across both private passenger and commercial automobile filings.

One mechanical requirement matters at binding. Massachusetts commercial policies subject to the compulsory law must be written on the Business Auto Coverage Form with the Massachusetts Mandatory Endorsement CR 99 07 attached. These are the same compulsory coverages a driver carries on a personal policy, which we cover in how car insurance works in Massachusetts.

Why the compulsory minimum is not enough

The compulsory limits are a floor for registration, not a sensible level of protection for a business. A single at-fault accident with injuries can generate a claim well past $50,000, and once the limit is exhausted the business pays the rest.

Commercial policies also differ from personal policies in how the limit is structured. Unlike personal auto, the BACF is typically written with a Combined Single Limit (CSL) rather than split limits. A CSL is one pool of money that covers both bodily injury and property damage from an accident, which gives the adjuster more flexibility to settle a mixed claim. The III notes that many insurers recommend a business auto liability limit of $1,000,000 CSL, treating $500,000 as the minimum; $500,000 and $1,000,000 are the common CSL options for small businesses.

Massachusetts makes the higher limits accessible even for hard-to-place risks. Under Rule 6 of CAR’s Rules of Operation, a Servicing Carrier providing compulsory coverages must offer Optional Bodily Injury at limits up to $1,000,000 per person and $1,000,000 per accident. The required offer also includes Uninsured and Underinsured Motorists up to $500,000 per person and $500,000 per accident (not to exceed the Optional BI limits), increased Property Damage up to $500,000, Medical Payments at a $5,000 limit, and a Combined Single Limit for bodily injury and property damage up to $1,000,000 per accident. Coverages required by any financial responsibility law, including trucking filings, are part of that offer for eligible risks. If your commercial auto limit still feels thin against the size of a claim, a commercial umbrella sits on top; see our guide on umbrella insurance in Massachusetts.

Hired and non-owned auto for businesses without company vehicles

Plenty of Massachusetts businesses own no vehicles yet still have auto exposure. When an employee runs a delivery, drives to a client site, or picks up supplies in their own car, the business can be named in a claim. Hired and non-owned auto (HNOA) coverage protects the business in that situation. It applies as excess over the limits of the employee’s personal auto coverage, stepping in after the personal policy is exhausted.

Because a BOP covers no vehicles, HNOA is a separate arrangement. For businesses that do own vehicles, the physical damage side of a commercial policy comes in three forms: collision, comprehensive (the broadest, covering most perils except collision), and specified perils (named perils only, at a lower premium). Choosing among them is a premium and risk trade-off worth working through at quoting.

Federal trucking and passenger-carrier minimums

Trucking operations answer to federal financial responsibility rules on top of Massachusetts law. Under 49 CFR 387.9, the minimum public liability for for-hire carriage of non-hazardous property in interstate or foreign commerce, in vehicles rated at 10,001 pounds GVWR or more, is $750,000. Carriers hauling oil listed in 49 CFR 172.101, or hazardous waste, materials, or substances outside the highest categories, need $1,000,000; that tier reaches interstate or foreign commerce in any quantity and intrastate commerce when transported in bulk.

The top tier of $5,000,000 applies to bulk hazardous substances, bulk Division 1.1 through 1.3 explosives, certain bulk Division 2.3 and Division 6.1 materials, bulk Division 2.1 and 2.2 gases, and highway route controlled quantities of Class 7 radioactive material. Under 49 CFR 387.3, the property-carrier rules generally do not reach vehicles under 10,001 pounds GVWR, except for the most dangerous hazmat classes, and they do apply to hazardous materials moved intrastate. For-hire interstate passenger carriers under 49 CFR 387.33 need $5,000,000 for any vehicle seating 16 or more including the driver, and $1,500,000 for vehicles seating 15 or fewer.

How Massachusetts rates fleets

Once a risk has five or more self-propelled automobiles of any type under one ownership, fleet classification applies under the CAR commercial manual. Trailers do not count toward the five, but they take the fleet classification if the risk otherwise qualifies.

For trucks, tractors, and trailers, three factors drive the classification: size, business use, and travel radius. Size runs by gross vehicle weight, from light trucks at 10,000 pounds or less, medium at 10,001 to 20,000, heavy at 20,001 to 45,000, and extra-heavy over 45,000; truck-tractors split at 45,000 pounds gross combination weight. Radius classes are local (up to 50 miles from the principal garaging address), intermediate (51 to 200 miles), and long distance (over 200 miles). Business use falls into service (moving the insured’s personnel, tools, and equipment to job sites), retail (pickup and delivery to households), and commercial (all other property transport). A multi-use vehicle takes the highest rated classification unless 80% or more of its use is a single lower rated activity.

When you cannot get coverage: the CAR residual market

Some commercial risks cannot find a carrier in the voluntary market. Commonwealth Automobile Reinsurers (CAR) was created under M.G.L. Chapter 175, Section 113H and operates the residual market, providing access to commercial motor vehicle liability and physical damage insurance for risks that cannot otherwise obtain coverage. Every member company writing commercial auto participates financially in the pool, while a limited number are selected as Servicing Carriers to issue and service residual market policies.

A Servicing Carrier must issue an annual policy providing compulsory coverages, or at the insured’s option a short-term policy expiring on a date the insured elects. There is a fair exit rule too: if an insured cancels a ceded policy at any point in the term to move into the voluntary market, the return premium is computed pro rata, not short rate. That protects a business that lands a better voluntary quote mid-term. When we shop a hard-to-place fleet, we work the voluntary market first and use CAR only where it belongs.