Connecticut Commercial Auto Insurance Requirements

Connecticut requires commercial auto insurance with minimum liability limits of 25/50/25 and mandatory uninsured/underinsured motorist coverage. Coverage minimums increase based on vehicle weight, passenger capacity and whether your business operates a livery or transportation network service.

Learn more about the commercial auto insurance coverage you need for your business in Connecticut, passenger and livery requirements, freight carrier thresholds and penalties for noncompliance below.

Select your industry

Select state

# Connecticut Commercial Auto Insurance Requirements

Written by Blest Papio

Updated: March 12, 2026

Advertising & Editorial Disclosure

What Commercial Auto Insurance Is Required in Connecticut?

Connecticut's commercial auto insurance requirements under CGS §§ 38a-335 and 14-112 set these base liability minimums for most businesses:

$25,000 for bodily injury or death of one person per accident
$50,000 for bodily injury or death of two or more people per accident
$25,000 for property damage per accident

Connecticut also mandates uninsured and underinsured motorist (UM/UIM) coverage at matching limits under CGS § 38a-336. These minimums apply to standard business vehicles that don't transport passengers for hire, don't haul hazardous cargo and weigh under 10,001 pounds. Heavier vehicles, passenger carriers and livery services must meet higher requirements detailed below.

Connecticut commercial vehicles carrying non-hazmat cargo within the state follow weight-based coverage tiers. If you transport cargo across state lines or as part of an interstate shipment, federal regulations apply instead. These weight-based tiers don't apply to vehicles under 10,001 lbs that stay within Connecticut, which default to the base 25/50/25 minimums.


Under 10,001 lbs	25/50/25 split limits	Light-duty commercial vehicles
10,001–26,000 lbs	$750,000 CSL	Medium-duty freight (federal FMCSA minimum)
26,001+ lbs	$750,000 CSL	Heavy-duty trucks, Class 7–8 vehicles
26,001+ lbs	$750,000 CSL	Semi-trucks, dump trucks, heavy haulers

Connecticut's coverage tiers are based on GVWR (Gross Vehicle Weight Rating), not on the vehicle's actual weight on any given day. GVWR is the maximum allowed weight, including the vehicle itself, fuel, driver, passengers and cargo. You can find your GVWR in these places, listed from most to least accessible:

On your vehicle: Most often on the driver-side door jamb, door edge or pillar, and sometimes inside the engine bay. It may also be listed as GAWR (axle ratings).
Owner's manual: Sections often named specifications, vehicle identification, weight information, towing/trailering or technical data.
Manufacturer website: Search by your vehicle model for specs on the automaker's website.

Connecticut imposes sharply higher insurance requirements for vehicles carrying passengers for hire, not for commercial vehicles that only transport employees or cargo. The biggest jump is at nine passengers: once a vehicle seats more than eight, the minimum rises from 25/50/25 to $1,500,000 CSL.


1–8	25/50/25 split limits	Standard commercial passenger vehicles
9–15	$1,500,000 CSL	Shuttles, large vans, small buses
16+	$5,000,000 CSL	Charter buses, tour buses, large transit

Connecticut regulates transportation network companies (TNCs) like Uber and Lyft under CGS § 13b-120. Coverage requirements apply the moment a driver connects to the app, not only when a passenger is in the vehicle. These TNC-specific rules don't apply to traditional taxi or livery operators, which have separate, higher coverage requirements under Connecticut DOT regulations.


App on, waiting for request	TNC, driver or both	50/100/25 liability + UM/UIM
Ride accepted through completion	TNC, driver or both	$1,000,000 CSL + UM/UIM
App off	Driver (personal policy)	25/50/25 state minimum

TNC drivers in Connecticut have a major coverage gap. Most personal auto policies exclude all rideshare activity, leaving zero protection for any accident while the app is on. Connecticut law explicitly permits insurers to add this exclusion under CGS § 13b-120(g), and most carriers do, even for periods when no passenger is present.

Hazardous materials coverage in Connecticut follows federal FMCSA classifications under 49 CFR Part 171. Connecticut doesn't regulate non-hazmat cargo by category, so non-hazmat requirements are based on vehicle weight instead. A common mistake is assuming small quantities of hazmat don't trigger higher limits, but federal rules apply based on DOT cargo classification, not shipment size.


Non-hazmat general freight	$750,000 CSL	Standard goods, equipment, household items (10,001+ lbs)
Standard hazmat	$1,000,000 CSL	Flammable liquids, corrosives, oxidizers per DOT rules
Oil and petroleum	$1,000,000 CSL	Crude oil, fuel oil, lubricants in any federal quantity
High-risk hazmat	$5,000,000 CSL	Tanks over 3,500 gallons, Class A/B explosives, poison gas, radioactive materials per 49 CFR Part 171

Connecticut's $5,000,000 high-risk hazmat requirement applies regardless of vehicle size. Even vehicles under 10,001 lbs GVWR must carry this amount when transporting high-risk materials.

WHEN DOES FEDERAL LAW APPLY OVER CONNECTICUT LAW?

Federal commercial auto insurance requirements supersede Connecticut state law when your operations involve transporting cargo or passengers across state lines, or if you move cargo as part of an interstate shipment, even if your leg stays entirely within Connecticut. Federal FMCSA rules also apply to any vehicle with a GVWR of 10,001 pounds or more that's used in interstate commerce, regardless of cargo type. Verify current requirements with the Connecticut DMV, federal FMCSA insurance filing standards and a licensed insurance professional to confirm which jurisdiction governs your fleet.

Connecticut Commercial Auto Insurance Requirement Exemptions

Connecticut exempts certain vehicles from commercial auto insurance requirements based on use, registration status and ownership structure. Self-insurance is available with approval from the Connecticut Insurance Commissioner under CGS § 38a-371, though applicants must demonstrate the financial capacity to administer claims independently.


Vehicle used only for personal (non-business) purposes	Personal auto insurance rules under CGS § 14-112
Farm or agricultural vehicle not operated on public roads	May not require liability coverage under road-use laws
Off-road equipment (construction vehicles, ATVs) not driven on public highways	Not subject to on-road insurance mandates
Government vehicles covered under authorized self-insurance programs	Government self-insurance statutes
Vehicle not registered for road use (yard-only, private property use)	No road-use liability requirement
Self-insured businesses approved by the Insurance Commissioner	Must meet financial capacity and claims administration standards per CGS § 38a-371
Medicaid client transportation	Overseen by Colorado HCPF, not PUC (per HB21-1206)

These exemptions don't apply to vehicles operated on public roads in Hartford, Bridgeport, New Haven, Stamford or any other Connecticut municipality. If you're unsure whether your vehicle qualifies for an exemption, contact the Connecticut DMV Compliance Unit at 860-263-5725.

Connecticut Commercial Auto Insurance Alternatives

Connecticut offers two alternatives to standard commercial auto insurance policies under CGS § 38a-371. Cash deposits and surety bonds aren't available as alternatives for commercial vehicles in Connecticut. Only self-insurance and standard insurance policies satisfy the state's financial responsibility requirements.

Self-insurance: Connecticut allows vehicle owners to self-insure with approval from the Insurance Commissioner. Applicants must provide evidence of a continuing commitment to meet all obligations under state insurance law, demonstrate appropriate claims administration capacity and show sufficient financial resources to cover potential liabilities. The Commissioner can revoke approval if standards aren't met, so self-insurance is practical only for large fleets with substantial assets.
Standard insurance policy: The only other option is purchasing a commercial auto liability policy from an insurer licensed in Connecticut that meets or exceeds the minimum coverage limits for your vehicle type, weight and use.

Special Connecticut Commercial Auto Insurance Coverage Circumstances

Three situations require higher commercial auto insurance in Connecticut or additional documentation.

Leased commercial vehicles

Leasing companies often include lessees on the lessor's policy or require lessees to carry coverage meeting Connecticut's minimum standards. Connecticut's 25/50/25 liability minimums won't cover the full lease balance if your vehicle is totaled. A gap insurance policy covers the difference between the actual cash value (ACV) and the remaining lease amount.

Livery and taxi operations

Connecticut requires livery services, including limousines and black car services, to carry $1,500,000 CSL in continuous coverage. That's $500,000 more than what TNCs must carry during an active ride. Taxi operators must also carry at least $1,000,000 in coverage, and the Connecticut Department of Transportation requires livery operators to file proof of insurance and keep a valid livery permit. If your business operates both livery and TNC vehicles, each vehicle type must meet its respective coverage threshold.

Interstate operations into New York, Massachusetts and Rhode Island

Vehicles regularly crossing into New York, Massachusetts or Rhode Island for deliveries, passenger transport or service calls may trigger federal FMCSA insurance requirements. Each bordering state also has its own minimum coverage rules. New York, for example, requires 25/50/10 liability plus mandatory PIP coverage that Connecticut doesn't require. Confirm that your policy extends coverage across all states where your vehicles operate, and verify your insurer classifies each vehicle's use correctly to avoid claim denials at state lines.

Connecticut Commercial Auto Insurance Enforcement and Penalties

Insurers in Connecticut report cancelled policies to the DMV monthly under CGS § 38a-343, and the DMV keeps a database of suspended registrations that police can access during traffic stops. Operating a commercially registered vehicle without insurance in Connecticut is a Class D felony under CGS § 14-213b, a far harsher penalty than the Class C misdemeanor that applies to personal vehicles.


First offense (personal vehicle)	$100–$1,000	Suspension for one month	Proof of insurance + $250 restoration fee
Subsequent offense (personal vehicle)	$100–$1,000	Suspension for six months	Proof of insurance + $250 restoration fee
Commercial vehicle (knowingly uninsured)	Up to $5,000	Up to five years imprisonment + registration suspension	Proof of insurance + $250 restoration fee
Insurance lapse over 14 days	$200 civil penalty	Registration suspension notice issued	Proof of insurance or consent agreement with DMV
Failure to carry proof of insurance	$50 ($117 with fees)	None	Present valid insurance card

Connecticut doesn't require an SR-22 for reinstatement after a lapse. Drivers must instead show direct proof of current insurance for every registered vehicle and pay a $250 restoration fee. Under CGS § 14-12h, Connecticut police can also impound vehicles with suspended registrations caught on public roads, and owners who don't present valid registration and proof of insurance within 45 days risk forfeiture to the state.

How To Verify Your Business Meets Connecticut Commercial Auto Insurance Requirements

Follow these seven steps to confirm your fleet complies with Connecticut and federal commercial auto insurance rules.

1
Categorize each vehicle by its business use
Start by documenting whether each vehicle carries passengers, hauls freight or equipment, stays within Connecticut or regularly crosses into New York, Massachusetts or Rhode Island. Your coverage obligations flow from use, not from your business license type.
2
Look up each vehicle's GVWR
Check the driver-side door label for the Gross Vehicle Weight Rating. Any vehicle at 10,001 pounds or above may fall under federal FMCSA rules rather than Connecticut's base minimums.
3
Identify your governing jurisdiction
Local-only operations in Connecticut default to the state's 25/50/25 liability minimums. Any vehicle crossing state lines for freight or passenger transport may instead be subject to federal motor carrier insurance thresholds.
4
Match your policy limits to the correct tier
Compare your current liability limits against the tables above. Standard Connecticut commercial vehicles need 25/50/25 plus UM/UIM, but livery operators, passenger carriers and interstate freight haulers must meet much steeper minimums.
5
Audit your policy's vehicle classifications
Review how your insurer has classified each vehicle's use under Connecticut's commercial auto rules. A vehicle listed as "personal" or "pleasure" that's used for business deliveries can result in a denied claim if the classifications don't match actual operations.
6
File any required insurance reports
Connecticut requires annual insurance reporting to the DMV for vehicles over 18,000 pounds GVWR operating intrastate and over 10,000 pounds operating interstate. Interstate carriers may also need a USDOT number and proof of federal insurance filings.
7
Keep continuous coverage
Don't let your policy lapse. Connecticut insurers report cancellations to the DMV monthly, and any gap over 14 days triggers a $200 civil penalty and automatic registration suspension. Notify your insurer whenever vehicles are added, sold or reassigned to different duties.

Connecticut Commercial Auto Insurance Requirements: Bottom Line

What your business needs for commercial auto insurance in Connecticut comes down to four factors: vehicle use, weight class, cargo type and whether you cross state lines. With those answers in hand, confirm that your policy limits, UM/UIM coverage and vehicle classifications align with the correct requirement tier for each vehicle in your fleet.

Connecticut Commercial Auto Insurance Requirements: Next Steps

Connecticut's legal minimums tell you the lowest amount of coverage you can carry without a penalty. They don't tell you how much your business actually needs. The gap between those two numbers depends on your risk exposure, your contracts and the value of what you're moving.

If your goal is just legal compliance

Verify that every vehicle in your fleet carries at least the Connecticut or federal minimum for its use category. Double-check that your insurer's vehicle classifications match how each vehicle actually operates so you don't risk a denied claim when you get commercial auto insurance coverage.

If your vehicles are valuable or highly visible

Connecticut's $25,000 property damage floor is low for the state's repair costs, especially in Hartford, Stamford and Bridgeport. Branded vehicles, heavy equipment haulers and fleets with high street visibility attract larger lawsuit targets and should carry limits well above the minimum.

If you transport passengers

Passenger-related claims escalate fast, and many facility contracts and airport permits require coverage above Connecticut's state minimums. If you run shuttles or livery services near Bradley International Airport or across Fairfield County, review your limits against both state law and your contractual obligations.

If you haul goods or equipment

Connecticut's liability minimums won't always cover the damage a loaded commercial vehicle can cause. Heavier loads and longer routes along I-95 and I-84 increase both accident severity and claim costs, so match your limits to the worst-case scenario for your largest vehicle.

If your business signs contracts

Many Connecticut clients, landlords and general contractors require coverage levels above state minimums before they'll let you on site. Review every active agreement for insurance requirements and confirm your policy meets or exceeds them.

If your business operates across state lines

New York requires PIP coverage that Connecticut doesn't, and Massachusetts uses a no-fault system with its own liability thresholds. If your vehicles cross into any bordering state, confirm your policy is endorsed for multi-state coverage and meets each state's minimum requirements.

About Blest Papio

Blest Papio is a Content Producer at MoneyGeek specializing in small business insurance. With five years of experience in insurance and finance writing and hands-on perspective as a former business counselor, he understands the risks that come with running a business and what it takes to protect against them.

Blest focuses on commercial auto, cyber, property and specialty business insurance. He digs deep into policy details, regulations and provider offerings so businesses can find the coverage they need and avoid financial fallout. His goal is to translate technical insurance language and insurer offerings into guides you can act on.

Whether you're insuring company vehicles, managing cyber liability or protecting your commercial property, Blest aims to guide you through your risks to help you find coverage you truly need, not sell you a policy.

Read Full Bio »

sources

Connecticut General Assembly. "CGS § 38a-335 — Minimum Coverages." Accessed March 19, 2026.
Connecticut Insurance Department. "Insurance Department Home." Accessed March 19, 2026.
Connecticut Department of Motor Vehicles. "Commercial Vehicle Insurance and Reporting." Accessed March 19, 2026.
Federal Motor Carrier Safety Administration. "Insurance Filing Requirements." Accessed March 19, 2026.
U.S. Department of Transportation. "49 CFR Part 171 — General Information, Regulations and Definitions." Accessed March 19, 2026.

Connecticut Commercial Auto Insurance Requirements

What Commercial Auto Insurance Is Required in Connecticut?

Connecticut Commercial Auto Insurance Requirements by Vehicle Weight

Connecticut Commercial Auto Insurance Requirements by Passenger Count

Connecticut Commercial Auto Insurance Requirements by Service Type

Connecticut Commercial Auto Insurance Requirements by Cargo Type

Connecticut Commercial Auto Insurance Requirement Exemptions

Connecticut Commercial Auto Insurance Alternatives

Special Connecticut Commercial Auto Insurance Coverage Circumstances

Connecticut Commercial Auto Insurance Enforcement and Penalties

How To Verify Your Business Meets Connecticut Commercial Auto Insurance Requirements

Categorize each vehicle by its business use

Look up each vehicle's GVWR

Identify your governing jurisdiction

Match your policy limits to the correct tier

Audit your policy's vehicle classifications

File any required insurance reports

Keep continuous coverage

Connecticut Commercial Auto Insurance Requirements: Bottom Line

Connecticut Commercial Auto Insurance Requirements: Next Steps

sources