USDOT number for in-state trucks: required · State operating authority: yes, see below · State insurance minimums: yes, see below · UCR participant: yes · State trucking taxes or permits: Iowa DOT oversize/overweight permits.
What Iowa requires of trucking companies
- USDOT number for trucks that stay in IowaIowa DOT requires for-hire vehicles in intrastate commerce to display the carrier's name and USDOT number, adding the letters 'IA' after the number if the carrier never operates interstate. Most intrastate for-hire carriers must have an active USDOT number before Iowa will issue intrastate authority. Source
- Iowa operating authorityIowa DOT's Office of Motor Carrier Services issues a motor carrier permit to intrastate for-hire property carriers (household goods, liquid and dairy bulk, and other freight) and a motor carrier certificate to for-hire passenger carriers. Household goods movers must also file a tariff, and nondairy liquid haulers must complete a safety seminar. Source
- Insurance minimums for intrastate carriersIowa has adopted the federal limits for intrastate for-hire carriers: $750,000 for non-hazardous property in vehicles of 10,000 lbs GVWR and over, $300,000 under 10,000 lbs, and $1,000,000 or $5,000,000 for hazmat. Proof is filed on Form E, and cargo insurance is required but not filed. Source
Once a Iowa truck crosses a state line
Federal rules add a USDOT number, MC authority and a $750,000 minimum for general freight (details). Iowa is a UCR participating state.
Iowa trucking taxes and permits
- Iowa DOT oversize/overweight permitsIowa DOT issues single-trip, multi-trip and annual oversize/overweight permits through its online permit system. Source
Workers’ comp for Iowa trucking companies
Iowa requires every employer covered by its workers' comp law to insure the liability or qualify to self-insure; there is no minimum employee count, though agricultural employers with small cash payrolls and some corporate officers who reject coverage are exempt. Iowa is not a monopolistic state. Source
Where Iowa trucks run
I-80 and I-35 cross at Des Moines, and I-29 (Sioux City and Council Bluffs), I-380 (Cedar Rapids and Waterloo) and I-74 (Quad Cities) carry heavy agricultural, livestock, ethanol and manufacturing freight, with Mississippi and Missouri river terminals handling grain. The busiest freight markets include Des Moines, Cedar Rapids, Davenport/Quad Cities, Sioux City, Council Bluffs and Waterloo.
Iowa marks intrastate-only for-hire carriers with an 'IA' suffix after the USDOT number. Iowa intrastate permits do not expire; they stay valid until suspended for a lapse in insurance or a missed required safety seminar.
Iowa trucking by the numbers
| Measure | Iowa | Rank among the states | Detail |
|---|---|---|---|
| New for-hire carriers (October 2025 to September 2026) | 1,084 | #30 of 51 | +10.5% from the year before; 65% started with a single power unit. |
| Deaths in truck crashes, 2024 | 60 | #27 of 51 | 54 fatal crashes among 2,076 reportable truck crashes; 690 deaths 2016–2025 (2025 preliminary). |
| Vehicles placed out of service at roadside inspections, 2025 | 33.9% | #5 of 49 | 36,056 inspections; drivers out of service 8.6% (US: vehicles 22.3%, drivers 6.1%). |
| Trucking companies that lost operating authority, 2025 | 633 | #30 of 51 | 36 more suspended for cancelled insurance under Motus since June 2026. |
| Federal major disaster declarations since 2000 | 41 | #13 (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 Iowa?
Iowa DOT requires for-hire vehicles in intrastate commerce to display the carrier's name and USDOT number, adding the letters 'IA' after the number if the carrier never operates interstate. Most intrastate for-hire carriers must have an active USDOT number before Iowa will issue intrastate authority.
What insurance does Iowa require for intrastate trucking?
Iowa has adopted the federal limits for intrastate for-hire carriers: $750,000 for non-hazardous property in vehicles of 10,000 lbs GVWR and over, $300,000 under 10,000 lbs, and $1,000,000 or $5,000,000 for hazmat. Proof is filed on Form E, and cargo insurance is required but not filed.
Is workers’ comp required for a trucking company in Iowa?
Iowa requires every employer covered by its workers' comp law to insure the liability or qualify to self-insure; there is no minimum employee count, though agricultural employers with small cash payrolls and some corporate officers who reject coverage are exempt. Iowa is not a monopolistic state.
Sources
- Iowa: USDOT number for intrastate carriers
- Iowa: State operating authority
- Iowa: Workers’ compensation
- Iowa: Iowa DOT 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.