USDOT number for in-state trucks: required · State operating authority: none found for general freight · State insurance minimums: yes, see below · UCR participant: no · State trucking taxes or permits: ADOT oversize/overweight permits.
What Arizona requires of trucking companies
- USDOT number for trucks that stay in ArizonaADOT says carriers that operate only inside Arizona need a USDOT number once a vehicle or combination is over 26,000 lbs GVWR, for both for-hire and private carriers. Interstate carriers use the federal threshold of more than 10,000 lbs. Source
- Insurance minimums for intrastate carriersArizona requires minimum coverage of $750,000 for vehicles over 26,000 lbs hauling non-hazardous property, and $300,000 for vehicles from 20,001 to 26,000 lbs. Source
Once a Arizona truck crosses a state line
Federal rules add a USDOT number, MC authority and a $750,000 minimum for general freight (details). Arizona doesn’t participate in UCR; interstate carriers based here still register through a participating state.
Arizona trucking taxes and permits
- ADOT oversize/overweight permitsADOT issues single-trip, 30-day and annual oversize/overweight permits online through its ePRO system and at ports of entry, with Class C permits for the largest loads. Source
Workers’ comp for Arizona trucking companies
Arizona's workers' comp law covers every employer that regularly employs workers, with no minimum headcount, so even one employee triggers coverage. There is no monopolistic state fund. Source
Where Arizona trucks run
Main corridors are I-10, I-40, I-17, I-8 and I-19, linking Phoenix and Tucson with California, Texas and the Nogales border crossings into Mexico. The busiest freight markets include Phoenix, Tucson, Nogales, Flagstaff, Yuma and Kingman.
Arizona does not take part in UCR, so Arizona-based interstate carriers register through another participating state. Cross-border freight at Nogales and extreme summer heat on I-10 and I-8 are notable operating factors.
Arizona trucking by the numbers
| Measure | Arizona | Rank among the states | Detail |
|---|---|---|---|
| New for-hire carriers (October 2025 to September 2026) | 2,532 | #14 of 51 | +10.7% from the year before; 66% started with a single power unit. |
| Deaths in truck crashes, 2024 | 143 | #13 of 51 | 115 fatal crashes among 2,562 reportable truck crashes; 1,204 deaths 2016–2025 (2025 preliminary). |
| Vehicles placed out of service at roadside inspections, 2025 | 25.1% | #22 of 49 | 52,367 inspections; drivers out of service 12.5% (US: vehicles 22.3%, drivers 6.1%). |
| Trucking companies that lost operating authority, 2025 | 1,337 | #15 of 51 | 13.5 for every 10 companies granted authority that year; 132 more suspended for cancelled insurance under Motus since June 2026. |
| Federal major disaster declarations since 2000 | 21 | #35 (tied) of 51 | Most often for severe storm, flood. |
From the public FEMA, NOAA, Storm Prediction Center, USGS and FMCSA records behind each linked report; ranks count all 50 states and Washington, DC unless noted.
Common questions
Do I need a USDOT number for intrastate trucking in Arizona?
ADOT says carriers that operate only inside Arizona need a USDOT number once a vehicle or combination is over 26,000 lbs GVWR, for both for-hire and private carriers. Interstate carriers use the federal threshold of more than 10,000 lbs.
What insurance does Arizona require for intrastate trucking?
Arizona requires minimum coverage of $750,000 for vehicles over 26,000 lbs hauling non-hazardous property, and $300,000 for vehicles from 20,001 to 26,000 lbs.
Is workers’ comp required for a trucking company in Arizona?
Arizona's workers' comp law covers every employer that regularly employs workers, with no minimum headcount, so even one employee triggers coverage. There is no monopolistic state fund.
Sources
- Arizona: USDOT number for intrastate carriers
- Arizona: Intrastate insurance minimums
- Arizona: Workers’ compensation
- Arizona: ADOT oversize/overweight permits
- FMCSA: States that require intrastate carriers to obtain a USDOT number
- FMCSA: Insurance filing requirements (49 CFR 387)
- Unified Carrier Registration
General information as of October 2026, not legal advice; confirm current rules with the agency.