What is commercial fleet insurance?
A business running pickups, vans and heavier trucks in one operation can cover them on one business auto policy, where each coverage names the vehicles it applies to. ISO's CA 00 01 11 20 form designates the covered autos for each coverage by symbol and pays one liability limit per accident regardless of the number of covered autos. Fleet is a rating classification: the Massachusetts CAR manual, effective March 1, 2026, gives it to five or more self-propelled autos under one ownership and rates each truck by size, business use and radius. Liability floors run from $30,000 per person under Utah Code 31A-22-304 to 49 CFR 387.9's $750,000 for for-hire interstate non-hazardous property carriers at 10,001 lb GVWR and up.
How many vehicles do you need for fleet insurance?
Under the Massachusetts CAR manual, effective March 1, 2026, a business with five or more self-propelled vehicles under one ownership takes the fleet classification. Rule 52.A of the manual, published by Commonwealth Automobile Reinsurers, counts "five or more self-propelled automobiles of any type that are under one ownership," leaves trailers out of the count, and applies the fleet classification to the trailers once the business qualifies. A business under five takes the non-fleet classification.
The CAR manual assigns the classification "for the purpose of determining premiums," and does not change it when vehicles are added or sold mid-term "except at the request of the insured." The manual is quoted here as one published rating manual; the count a Utah policy uses is set by the rules its insurer applies.
How does fleet insurance work when each vehicle does a different job?
One business auto policy covers vehicles that do different jobs, because each coverage on ISO's CA 00 01 11 20 form lists its covered vehicles by symbol. The form says "The symbols entered next to a coverage on the Declarations designate the only "autos" that are covered "autos"," so liability and physical damage can each apply to a different set of vehicles on the same policy.
The liability limit is one figure for the whole operation. CA 00 01 11 20's Limit Of Insurance clause sets the maximum it pays for any one accident at the liability limit shown in the declarations, "Regardless of the number of covered "autos", "insureds", premiums paid, claims made or vehicles involved in the "accident"."
A vehicle added mid-term is covered for the rest of the policy period under symbols 1 to 6 and 19 of CA 00 01 11 20, and under symbol 7 only if the insurer already covers every owned auto for that coverage or the vehicle replaces a covered one, and the business tells the insurer within 30 days. The wording on this page is ISO's 11 20 edition; the policy's own form and endorsements decide what it covers.
What should you check on your current commercial auto declarations page?
The declarations page of an ISO business auto policy shows which vehicles each coverage applies to, the liability limit and the physical damage deductibles. Check four entries against the vehicles the business runs today:
- Item Two: CA 00 01 11 20 says Item Two "shows the "autos" that are covered "autos" for each of your coverages," by the symbol entered next to each coverage.
- Item Three: under symbol 7, CA 00 01 11 20 covers "Only those "autos" described in Item Three of the Declarations for which a premium charge is shown," so a vehicle missing from Item Three has no coverage on a symbol 7 line.
- The liability limit: CA 00 01 11 20 pays the Limit Of Insurance for Covered Autos Liability Coverage shown in the declarations for any one accident.
- The deductibles: CA 00 01 11 20 reduces each physical damage payment "For each covered "auto"" by "the applicable deductible shown in the Declarations," pays a loss to one covered auto at the lesser of actual cash value and the cost of repair or replacement, and caps the deductible for one theft, vandalism or all-perils event at "five times the highest deductible applicable to any one covered "auto"" for comprehensive or specified causes of loss.
How are commercial vehicles classified for insurance?
The Massachusetts CAR manual classes each truck and van by three criteria: its size, its business use and how far it travels from where it is garaged. CAR Rule 52.B, effective March 1, 2026, says "The primary classification criteria are the automobile’s size, business use and travel radius," and sets size by gross vehicle weight, the maximum loaded weight the manufacturer specifies, or gross combination weight for a truck-tractor. Its local radius class ends at 50 miles from the garaging address.
| CAR size class | Weight or capacity |
|---|---|
| Light trucks | 10,000 lb GVW or less |
| Medium trucks | 10,001 to 20,000 lb GVW |
| Heavy trucks | 20,001 to 45,000 lb GVW |
| Extra-heavy trucks | Over 45,000 lb GVW |
| Heavy and extra-heavy truck-tractors | 45,000 lb GCW or less, and over 45,000 lb GCW |
| Trailers and semitrailers | Load capacity over 2,000 lb |
| Service or utility trailers | Load capacity 2,000 lb or less |
- Hauling for another business makes the operation a trucking risk under the CAR manual, which defines a trucker as "a person, firm or corporation in the business of exclusively or occasionally transporting goods, material or commodities for another" and applies the truckers classifications "even if it calls itself or advertises as a contractor." Tell the insurer what each truck carries and for whom.
What liability limits does a mixed fleet need?
A mixed fleet's business auto policy pays one liability limit per accident, whichever covered vehicle is involved, under ISO's CA 00 01 11 20 Limit Of Insurance clause. Each holder sets its own floor by vehicle and work: Utah Code 31A-22-304 requires $30,000 per person, $65,000 per accident and $25,000 property damage on a policy issued or renewed since January 1, 2025, Utah R909-1-4(2) requires $750,000 of each intrastate private motor carrier, and 49 CFR 387.9 requires $750,000 of a for-hire carrier of non-hazardous property in interstate commerce at 10,001 lb GVWR or more. Check the limit in the declarations against the floor each holder sets for each vehicle in the operation.
What do you send to get a mixed fleet quoted?
Redoubt starts a conversation about a mixed fleet from one list that describes each vehicle, each driver and the work each truck does. Send the list below by text; the first reply is a conversation about how each vehicle is classed and what limit the operation needs.
- Each vehicle and trailer: year, make, model, body type, GVW, value and what it does
- Every driver: name, date of birth, licence number and licence class
- USDOT number, and the MC or docket number if any, with the vehicle and driver counts FMCSA's record shows
- What each truck hauls: the business's own goods, or other people's goods for a fee
- The current declarations page, or the dates of prior coverage
- A line on what the business does, and the date coverage has to start
Sources: 21
Can you get fleet insurance for one vehicle?
Under the Massachusetts CAR manual's Rule 52.A, effective March 1, 2026, a business with fewer than five self-propelled vehicles takes the non-fleet classification, and Rule 52.B still classes each truck by size, business use and radius.
Do trailers count toward a fleet?
Not under the Massachusetts CAR manual: Rule 52.A, effective March 1, 2026, leaves trailers out of the five-vehicle count and gives them the fleet classification when the business otherwise qualifies.
Where these answers come from
Each entry carries the exact words of the source so you can check it yourself. Forms, rules and carrier pages change; read the current version before acting.
- 1. CAR Commercial Automobile Insurance Manual, Rule 52.A.1, fleet classification
“Any risk that has five or more self-propelled automobiles of any type that are under one ownership.”
commauto.com, accessed October 12, 2026. Section III p.2. The rule leaves out autos of allied or subsidiary interests without a majority interest and mobile equipment insured on a general liability policy. Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 2. CAR Commercial Automobile Insurance Manual, Rule 52.A.1.c, trailers
“trailers, but apply the fleet classification to the trailers if the risk otherwise is classified as a fleet.”
commauto.com, accessed October 12, 2026. Item c of the list introduced by "For the purpose of assigning this classification, do not include:". Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 3. CAR Commercial Automobile Insurance Manual, Rule 52, purpose of the classifications
“The following classification procedures apply for the purpose of determining premiums.”
commauto.com, accessed October 12, 2026. Rule 52 opening line, Trucks, Tractors and Trailers Classifications. Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 4. CAR Commercial Automobile Insurance Manual, Rule 52.A.2, non-fleet and mid-term changes
“Do not change the fleet or non-fleet classification because of mid-term changes in the number of owned automobiles except at the request of the insured.”
commauto.com, accessed October 12, 2026. Same paragraph defines non-fleet as "Automobiles for risks that do not qualify for a fleet classification." Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 5. CAR Commercial Automobile Insurance Manual, Rule 52.B, primary classifications
“The primary classification criteria are the automobile’s size, business use and travel radius.”
commauto.com, accessed October 12, 2026. Rule 52.B.1 then defines GVW as "the maximum loaded weight for which a single automobile is designed, as specified by the manufacturer." Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 6. CAR Commercial Automobile Insurance Manual, Rule 52.B.1, light and medium trucks
“Light Trucks – (1) trucks that have a gross vehicle weight (GVW) of 10,000 pounds or less, or (2) buses that have a seating capacity of 1-8”
commauto.com, accessed October 12, 2026. Item b, Medium Trucks: "trucks that have a gross vehicle weight (GVW) of 10,001-20,000 pounds". Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 7. CAR Commercial Automobile Insurance Manual, Rule 52.B.1 and 52.B.2, heavy trucks, tractors and trailers
“Heavy Trucks – (1) trucks that have a gross vehicle weight (GVW) of 20,001-45,000 pounds, or”
commauto.com, accessed October 12, 2026. Item d sets extra-heavy trucks over 45,000 lb GVW; item e sets heavy truck-tractors at 45,000 lb GCW or less and extra-heavy over 45,000 lb; Rule 52.B.2 sets trailers and semitrailers at a load capacity over 2,000 lb and service or utility trailers at 2,000 lb or less. Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 8. CAR Commercial Automobile Insurance Manual, Rule 52.B.4.a, local radius
“Local – up to 50 miles – the automobile is not operated beyond a radius of 50 miles from the street address where such automobile is principally garaged.”
commauto.com, accessed October 12, 2026. Intermediate is 51 to 200 miles, long distance over 200. Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 9. CAR Commercial Automobile Insurance Manual, Rule 51.B, truckers
“A trucker is defined as a person, firm or corporation in the business of exclusively or occasionally transporting goods, material or commodities for another, including automobiles used in moving operations.”
commauto.com, accessed October 12, 2026. Section III p.1 to 2. The rule opens "Unique rating procedures apply to trucking risks" and adds that a risk qualifies "even if it calls itself or advertises as a contractor, building contractor, building material dealer, sand and gravel hauler, or some other similar name." Primary only for CAR's own rules; the page writes "the CAR manual", never "insurers". - 10. ISO CA 00 01 11 20, Business Auto Coverage Form, Section I, covered autos
“Item Two of the Declarations shows the "autos" that are covered "autos" for each of your coverages. The following numerical symbols describe the "autos" that may be covered "autos". The symbols entered next to a coverage on the Declarations designate the only "autos" that are covered "autos".”
assets.touchpointmarkets.com, accessed October 12, 2026. 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 11. ISO CA 00 01 11 20, Business Auto Coverage Form, Section I.A, symbol 7
“Only those "autos" described in Item Three of the Declarations for which a premium charge is shown (and for Covered Autos Liability Coverage any "trailers" you don't own while attached to any power unit described in Item Three).”
assets.touchpointmarkets.com, accessed October 12, 2026. Symbol 7, Specifically Described "Autos". 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 12. ISO CA 00 01 11 20, Business Auto Coverage Form, Section I.B.1, autos acquired mid-term
“If Symbols 1, 2, 3, 4, 5, 6 or 19 are entered next to a coverage in Item Two of the Declarations, then you have coverage for "autos" that you acquire after the policy period begins of the type described for the remainder of the policy period.”
assets.touchpointmarkets.com, accessed October 12, 2026. 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 13. ISO CA 00 01 11 20, Business Auto Coverage Form, Section I.B.2, autos acquired mid-term under symbol 7
“a. We already cover all "autos" that you own for that coverage or it replaces an "auto" you previously owned that had that coverage; and b. You tell us within 30 days after you acquire it that you want us to cover it for that coverage.”
assets.touchpointmarkets.com, accessed October 12, 2026. I.B.2 opens "But, if Symbol 7 is entered next to a coverage in Item Two of the Declarations, an "auto" you acquire after the policy period begins will be a covered "auto" for that coverage only if:". 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 14. ISO CA 00 01 11 20, Business Auto Coverage Form, Section II.C, limit of insurance
“Regardless of the number of covered "autos", "insureds", premiums paid, claims made or vehicles involved in the "accident", the most we will pay for the total of all damages and "covered pollution cost or expense" combined resulting from any one "accident" is the Limit Of Insurance for Covered Autos Liability Coverage shown in the Declarations.”
assets.touchpointmarkets.com, accessed October 12, 2026. 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 15. ISO CA 00 01 11 20, Business Auto Coverage Form, Section III.C, physical damage limit
“"Loss" to any one covered "auto" is the lesser of: (1) The actual cash value of the damaged or stolen property as of the time of the "loss"; or (2) The cost of repairing or replacing the damaged or stolen property with other property of like kind and quality.”
assets.touchpointmarkets.com, accessed October 12, 2026. The paragraph opens "The most we will pay for:". 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 16. ISO CA 00 01 11 20, Business Auto Coverage Form, Section III.D, deductible
“For each covered "auto", our obligation to pay for, repair, return or replace damaged or stolen property will be reduced by the applicable deductible shown in the Declarations prior to the application of the Limit Of Insurance”
assets.touchpointmarkets.com, accessed October 12, 2026. 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 17. ISO CA 00 01 11 20, Business Auto Coverage Form, Section III.D.2, deductible for one event
“will be equal to five times the highest deductible applicable to any one covered "auto" on the Policy for Comprehensive or Specified Causes Of Loss Coverage.”
assets.touchpointmarkets.com, accessed October 12, 2026. D.2 applies to loss in any one event caused by theft, mischief or vandalism, or all perils, "Regardless of the number of covered "autos" damaged or stolen". 11 20 is the newest edition found on the open web; a carrier's policy may carry a later edition, a state amendatory endorsement or its own form. - 18. Utah Code 31A-22-304(2), motor vehicle liability minimums from January 1, 2025
“a policy issued or renewed on or after January 1, 2025, containing motor vehicle liability coverage may not limit the insurer's liability under that coverage below the following: (a) (i) $30,000 because of liability for bodily injury to or death of one person”
le.utah.gov, accessed October 12, 2026. the section page's versionDefault on 2026-10-12 is this file, so it is the version in force. (2)(a)(ii) sets $65,000 for two or more persons and (2)(a)(iii) $25,000 for property damage; (2)(b) allows a $90,000 single limit. - 19. Utah Admin. Code R909-1-4(2), intrastate private motor carrier minimum
“Each intrastate private motor carrier must have a minimum amount of $750,000 liability.”
adminrules.utah.gov, accessed October 12, 2026. R909-1-4(1) defines a private motor carrier by "commercial motor vehicle"; the rule names private carriers and oil and hazardous materials carriers only and states no figure for intrastate for-hire carriers of general freight. - 20. 49 CFR 387.9, schedule of limits, row 1, eCFR
“For-hire (In interstate or foreign commerce, with a gross vehicle weight rating of 10,001 or more pounds) Property (nonhazardous) $750,000”
ecfr.gov, accessed October 12, 2026. Rows 2 to 4 cover hazardous materials and oil at $1,000,000 and $5,000,000, for-hire and private. No suspension note on 387.9. - 21. Redoubt, commercial auto insurance guide, what to send
“Text Redoubt the broker packet, the lender's insurance letter, the platform's upload screen or the renewal itself, with the vehicles and the date you need it by. We will say what can be bound now, what needs the carrier, and what to send back.”
www.redoubt.insure, accessed October 12, 2026
The business is starting, changing hands or changing what it does, and the policy has to describe it
First policies for a new business, taking over a business with vehicles, fleets of mixed vehicles, and how commercial auto fits with general liability and a bundled business policy.
Elsewhere on the site
Pickups, vans and trucks under one business
Text Redoubt the year, make, model, body type and value of each vehicle and trailer, every driver, your USDOT or MC number if you have one, what the business does, what each vehicle does and hauls for whom, and the date cover has to start, and we will talk through how each vehicle is classed and what limit the operation needs.
This is general insurance information, not legal advice or a coverage determination. The policy forms, the endorsements the carrier issues, and the requirement in writing from whoever is asking control.