State guide · Arizona

Arizona truck insurance

Arizona sets its own insurance floor for anyone running a truck over 20,000 lbs in a commercial enterprise — hauling their own goods or someone else’s: $750,000 above 26,000 lbs and $300,000 from 20,001 to 26,000 lbs.

Updated · sources at the bottom of the page

At a glance

Who it covers
Anyone operating a vehicle or combination with a declared gross weight over 20,000 lbs in a commercial enterprise in Arizona, and hazmat carriers, with narrow exceptions.
Nonhazardous property
$750,000 combined single limit over 26,000 lbs; $300,000 from 20,001 to 26,000 lbs.
Hazardous materials
$1,000,000 or $5,000,000, depending on the material.
Fees
A gross weight fee and an annual motor carrier fee by declared weight, paid at registration.
Basic auto minimum
25/50/15.

Hauling across state lines

Interstate for-hire freight needs the federal set: USDOT number, operating authority (MC), BMC-91 or BMC-91X filed with FMCSA by your insurer, a BOC-3 and at least $750,000 of liability for general freight in vehicles rated 10,001 lbs GVWR or more. See the new authority guide.

Arizona’s insurance minimums

Arizona law requires anyone who operates, in the furtherance of a commercial enterprise in the state, a vehicle or combination with a declared gross weight over 20,000 lbs to carry combined single limit liability insurance (A.R.S. 28-4032, 28-4033):

Nonhazardous property, over 26,000 lbs
$750,000
Nonhazardous property, 20,001 to 26,000 lbs
$300,000
Oil and other hazardous materials
$1,000,000
Highest-hazard loads
$5,000,000 — hazardous substances or compressed gas in cargo tanks, portable tanks or hoppers over 3500 water gallons, any quantity of Class A or B explosives or poison gas, and radioactive materials that require special handling controls

Because the rule turns on use in a commercial enterprise, it covers trucks hauling your own goods as well as other people’s. It also covers hazmat haulers unless the hazmat is incidental to the trip, not part of a commercial enterprise, or a small amount (A.R.S. 28-4032). The coverage must be kept in force at all times, and ADOT may ask you to certify it (A.R.S. 28-4034). If a truck is leased or rented, the lessor must cover the lessee under its policy or require the lessee to meet these limits (A.R.S. 28-4033).

Safety rules, fees and USDOT

  • Safety rules. ADOT adopts the safety rules for motor carriers, including for hazardous materials, and the Department of Public Safety enforces them (A.R.S. 28-5204). DPS also administers Arizona’s tow truck regulations.
  • Fees at registration. Trucks pay a gross weight fee and an annual motor carrier fee set by declared weight — for example $918 and $800 at 75,001–80,000 lbs (A.R.S. 28-5433, 28-5854). Station wagons and pickups or vans of three-quarter ton or less are outside the gross weight fee unless used more than 1,000 hours a year in a commercial enterprise (A.R.S. 28-5432).
  • USDOT. FMCSA lists Arizona among the states that require intrastate registrants to obtain a USDOT number. ADOT says carriers operating only in Arizona don’t schedule a new-entrant safety audit, but should contact ADOT to make sure their company profile shows the correct operating authority.

Getting truck insurance quotes in Arizona

  • USDOT number, and MC number if you haul interstate for hire.
  • For each truck: VIN, year, make, model and declared gross weight — Arizona’s limits start over 20,000 lbs and step up over 26,000 lbs.
  • What you haul, especially any hazardous materials, and where.
  • Leased or rented trucks: who carries the insurance under the lease.
  • Drivers’ license details and experience, and loss runs from recent insurers.

Running into California too? See the California guide.

Questions truckers ask

What is the minimum truck insurance in Arizona?

For a vehicle or combination with a declared gross weight over 20,000 lbs used in a commercial enterprise: a $750,000 combined single limit over 26,000 lbs and $300,000 from 20,001 to 26,000 lbs for nonhazardous property. Hazardous materials need $1,000,000 or $5,000,000.

Does Arizona’s rule apply to private carriers?

Yes. It applies to anyone operating such a vehicle in the furtherance of a commercial enterprise in Arizona — not only to carriers hauling for hire.

Do interstate carriers still need the federal filing?

Yes. Interstate for-hire carriers need their insurer’s BMC-91 or BMC-91X filing with FMCSA at the federal minimum — $750,000 for general freight in vehicles rated 10,001 lbs GVWR or more.

What fees does Arizona charge for heavy trucks?

At registration, a gross weight fee and an annual motor carrier fee based on declared weight — for example $918 and $800 at 75,001 to 80,000 lbs.

Do Arizona intrastate trucks need a USDOT number?

FMCSA lists Arizona among the states that require intrastate registrants to obtain a USDOT number.

What are Arizona’s basic auto insurance minimums?

For policies issued or renewed since July 1, 2020: $25,000 for injury or death of one person, $50,000 for two or more people and $15,000 for property damage in one accident.

Sources

  1. A.R.S. 28-4032 — Who must meet the motor carrier insurance requirements (over 20,000 lbs)
  2. A.R.S. 28-4033 — Financial responsibility requirements (limits)
  3. A.R.S. 28-4034 — Maintaining and certifying the insurance
  4. A.R.S. 28-5204 — Motor carrier safety rules (ADOT) and enforcement (DPS)
  5. Arizona Department of Public Safety — Commercial Vehicle Enforcement
  6. A.R.S. 28-5432 — Which vehicles pay gross weight fees (and exceptions)
  7. A.R.S. 28-5433 — Gross weight fees
  8. A.R.S. 28-5854 — Motor carrier fee
  9. ADOT — New Entrant Program FAQ (intrastate carriers)
  10. A.R.S. 28-4009 — Basic auto liability minimums
  11. FMCSA — Do I Need a USDOT Number?
  12. FMCSA — Insurance Filing Requirements (chart of minimums and forms)

Checked September 28, 2026. Rules and fees change — confirm with the agency that regulates you before you rely on a number. General information, not legal advice.

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