An Affiliated Office of AIC Insurance
360-450-2211Read our Google reviews ↗
Get a Quote
Wyoming trucking insurance
Change state

IP location is approximate and may reflect a VPN or mobile network. You can choose any state we serve. This changes website content, not your application or coverage.

How regional content works · IP Geolocation by DB-IP

Explore Wyoming coverage →
Home /

Wyoming Trucking Insurance

Class Insurance Agency, an affiliated office of AIC Insurance

Truck insurance for Wyoming haulers

Wyoming trucking means I-80: nearly half its traffic is semis, and most of its commercial vehicle crashes come with winter weather and high wind. Wyoming also has its own authority and filings, 117,000-lb doubles and a new English proficiency law. We quote Wyoming owner-operators, new authorities and fleets by phone, email and online from our office in Vancouver, Washington, in English, Russian, Ukrainian or Romanian.

Call 360-450-2211 or start a quote online.

WYDOT Letter of Authority and insurance

  • Letter of Authority. Contract carriers hauling for pay at any weight, and private carriers with vehicles over 26,000 lb, need a WYDOT Letter of Authority. The filing fee is $50, it’s permanent unless revoked, and a copy rides in every power unit. Farmers and ranchers hauling their own produce are exempt.[1][2]
  • Insurance. For-hire carriers file a Form E for at least $750,000 combined single limit and a Form H for $10,000 of cargo. Cargo isn’t required for raw farm products (except livestock) or sand, rock and gravel.[3][2] WYDOT doesn’t accept ACORD certificates, binders or ID cards.[4]
  • Cancellation. Coverage stays in force until 30 days’ written notice to WYDOT, and your authority is suspended on the cancellation date.[1]
  • Household goods movers are contract carriers that file both a Form E and a Form H.[2]
  • USDOT number. Wyoming requires USDOT numbers for intrastate carriers[5], shown with a “WY” suffix.[6]

I-80: wind, chains and closures

  • Wind closures. WYDOT closes roads to light, high-profile vehicles in high wind, and its signs list a gross weight threshold.[7] Since July 1, 2024, ignoring a weight-based closure costs $1,000, or $2,500 for a repeat within three years, and counts as reckless driving.[8][9]
  • Chain law. At Level 2, commercial vehicles must chain at least two drive wheels at opposite ends of the same drive axle. Fines run up to $250, or $750 if the violation closes all lanes.[10][1]
  • Closures. Driving past a road closure is a misdemeanor with a fine up to $750.[9]
  • The numbers. Semis are about 46% of I-80 traffic. From 2018 to 2022 there were 4,106 crashes involving commercial vehicles on I-80, half of all crashes; 54% were weather-related, about 90% involved out-of-state drivers, and 122 were heavy-truck blow-overs.[11]

Weights, doubles and permits

  • Limits. 20,000 lb single axle, 36,000 lb tandem, 102 inches wide and 14 feet high. Combinations can have up to 3 units, with doubles trailers up to 81 feet combined.[1]
  • 117,000 lb. Federal law caps Wyoming’s longer combinations at 117,000 lb.[12]
  • Harvest and natural resources. Off the Interstate, forest products, sugar beets, gravel, livestock and farm products that can’t be weighed at loading can run 10% over axle limits and 5,000 lb over gross on a $15 (96-hour) or $50 (90-day) permit.[1]
  • Permits. Overweight permits cost 6 cents per ton over the limit per mile, at least $40, and a single-trip oversize permit is $25.[1] WYDOT suspended the heavier “Class W” permit on WYO 116 in May 2024 because of road damage.[13]
  • Ports of entry. Every commercial vehicle entering Wyoming must stop at a port of entry.[14]

Fees, fuel tax and registration

  • Registration is by weight: $907.50 a year at 78,001–80,000 lb, prorated by Wyoming miles for IRP fleets. Out-of-state IRP fleets without Wyoming authority pay an equalized highway use tax instead.[1]
  • Trip permits. A 96-hour temporary registration is $40 for a combination, and a 96-hour fuel permit $15.[1]
  • Diesel tax is 24 cents a gallon.[15][16] A tax on electricity used to power electric vehicles took effect July 1, 2026.[17]
  • IFTA and IRP go through WYDOT in Cheyenne (307-777-4827), and a virtual office can’t be used as your place of business.[18]
  • No tolls. WYDOT studied tolling I-80, but the Legislature voted against it in 2010.[19]

Drivers, speed and the 2026 English law

  • English proficiency. Since March 5, 2026, state law adopts the federal English proficiency standard. A driver who can’t meet it is fined $1,000 and may not drive a commercial vehicle in Wyoming until they can.[20]
  • Drivers from 18. Wyoming’s safety rules let intrastate drivers be 18, and treat the whole year as the farm growing season.[6]
  • Speed. 75 mph on Interstates, 80 where designated, with no separate truck limit.[1] Speeding tickets in a commercial vehicle don’t get the break some minor tickets get on your record.[21]

Wyoming freight

Wyoming mines almost two-fifths of U.S. coal and has 7 of the country’s 10 largest coal mines[22], and 5 of the country’s 6 soda ash plants, made from trona, are in Wyoming.[23] I-80 carries an average of 13,828 vehicles a day, nearly half of them semis.[11]

What to have ready for a Wyoming quote

  • USDOT and MC numbers, and your Letter of Authority if you have one
  • Where the trucks are garaged, your usual routes and your radius, especially I-80 miles
  • What you haul: energy equipment, coal, trona, livestock, sugar beets, hay or general freight
  • Whether you pull doubles, and your trailer types
  • Driver names, license numbers, years of experience and winter driving history
  • Year, make, VIN and value of each truck and trailer
  • Current policy and loss runs, if you have been insured before

Frequently asked questions

Do I need Wyoming authority to haul for hire inside the state?

Yes, a WYDOT Letter of Authority, with a $50 filing fee and a Form E of at least $750,000.[1][3]

Does WYDOT accept a certificate of insurance?

No. Your insurer must file a Form E (and Form H for cargo); WYDOT doesn’t accept ACORD certificates, binders or ID cards.[4]

What is the fine for ignoring a wind closure in Wyoming?

$1,000 for a first offense and $2,500 for a repeat within three years, and it counts as reckless driving.[8]

How heavy can doubles run in Wyoming?

Up to 117,000 lb, with trailers up to 81 feet combined.[12][1]

Is English proficiency enforced for truck drivers in Wyoming?

Yes. Since March 5, 2026, a driver who can’t meet the standard is fined $1,000 and can’t drive a commercial vehicle in Wyoming until they do.[20]

Get a Wyoming truck insurance quote

Call 360-450-2211 or start your quote. We’re open Monday to Friday, 7 a.m. to 5 p.m. Pacific (8 a.m. to 6 p.m. Mountain).


Related coverage and nearby states

Sources

General information only, checked September 2026. Rules change; confirm with the agency that issues your permits. Coverage availability, terms and filings depend on underwriting and the policy issued; a quote request does not bind insurance.