USDOT number for in-state trucks: required · State operating authority: yes, see below · State insurance minimums: yes, see below · UCR participant: no · State trucking taxes or permits: Mandatory ports of entry, Oversize/overweight permits.
What Wyoming requires of trucking companies
- USDOT number for trucks that stay in WyomingWyoming operating authority requires a USDOT number from private carriers running vehicles over 26,000 lbs and from contract (for-hire) carriers with vehicles over 26,000 lbs or taxis carrying more than 7 passengers. Wyoming can issue intrastate numbers that carry a 'WY' suffix. Source
- Wyoming operating authorityWYDOT's Motor Vehicle Services Operating Authority Section issues Wyoming Operating Authority, which contract carriers hauling others' property for pay need at any weight, and private carriers need for vehicles over 26,000 lbs. Passenger carriers such as taxis and tour buses also need it, and a copy of the authority letter must be carried in each power unit. Source
- Insurance minimums for intrastate carriersContract (for-hire) carriers must file a Form E showing at least $750,000 combined single limit, plus a $10,000 Form H cargo filing when hauling goods of appreciable value and $5,000 for mobile home movers. Private-only carriers are exempt from these filings. Source
Once a Wyoming truck crosses a state line
Federal rules add a USDOT number, MC authority and a $750,000 minimum for general freight (details). Wyoming doesn’t participate in UCR; interstate carriers based here still register through a participating state.
Wyoming trucking taxes and permits
- Mandatory ports of entryAll commercial vehicles entering Wyoming must stop at a port of entry and show IFTA, registration or IRP credentials and Wyoming operating authority where required. Source
- Oversize/overweight permitsAny load over legal size or weight must have a permit or permission from the Wyoming Highway Patrol before moving on Wyoming highways. Source
Workers’ comp for Wyoming trucking companies
Wyoming is a monopolistic state: employers in extra-hazardous industries must buy workers' compensation from the state fund run by the Department of Workforce Services before work begins, and self-insurance is not allowed. The statute's extra-hazardous list includes transportation and warehousing, which covers trucking companies. Source
Where Wyoming trucks run
I-80 across southern Wyoming is one of the nation's busiest transcontinental truck corridors, with I-25 and I-90 serving Cheyenne, Casper and the Powder River Basin around Gillette. The busiest freight markets include Cheyenne, Casper, Gillette, Rock Springs, Laramie and Sheridan.
High winds and winter storms regularly close I-80 between Laramie and Rawlins, often with closures to light, high-profile trailers, and oil, gas, coal and trona hauling drive much in-state trucking. Wyoming does not participate in UCR.
Wyoming trucking by the numbers
| Measure | Wyoming | Rank among the states | Detail |
|---|---|---|---|
| New for-hire carriers (October 2025 to September 2026) | 409 | #40 of 51 | +24.3% from the year before; 54% started with a single power unit. |
| Deaths in truck crashes, 2024 | 17 | #40 of 51 | 17 fatal crashes among 888 reportable truck crashes; 256 deaths 2016–2025 (2025 preliminary). |
| Vehicles placed out of service at roadside inspections, 2025 | 35.4% | #4 of 49 | 14,441 inspections; drivers out of service 14.3% (US: vehicles 22.3%, drivers 6.1%). |
| Trucking companies that lost operating authority, 2025 | 224 | #41 of 51 | 18 more suspended for cancelled insurance under Motus since June 2026. |
| Federal major disaster declarations since 2000 | 9 | #50 of 51 | Most often for flood, severe storm. |
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 Wyoming?
Wyoming operating authority requires a USDOT number from private carriers running vehicles over 26,000 lbs and from contract (for-hire) carriers with vehicles over 26,000 lbs or taxis carrying more than 7 passengers. Wyoming can issue intrastate numbers that carry a 'WY' suffix.
What insurance does Wyoming require for intrastate trucking?
Contract (for-hire) carriers must file a Form E showing at least $750,000 combined single limit, plus a $10,000 Form H cargo filing when hauling goods of appreciable value and $5,000 for mobile home movers. Private-only carriers are exempt from these filings.
Is workers’ comp required for a trucking company in Wyoming?
Wyoming is a monopolistic state: employers in extra-hazardous industries must buy workers' compensation from the state fund run by the Department of Workforce Services before work begins, and self-insurance is not allowed. The statute's extra-hazardous list includes transportation and warehousing, which covers trucking companies.
Sources
- Wyoming: USDOT number for intrastate carriers
- Wyoming: Workers’ compensation
- Wyoming: Mandatory ports of entry
- 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.