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State guide

Start and run a trucking company in Idaho

Idaho sells no state operating authority. An Idaho carrier's state layer is a USDOT number once the Idaho State Police weight or cargo trigger applies, truck registration with ITD Commercial Vehicle Services, an insurer-filed Form E for haul-for-hire trucks, and IFTA through the State Tax Commission. Every fee and limit below comes from an Idaho agency or statute.

By Evan Reid, Founder of Haul Handbook · Updated Sep 28, 2026

The short answer

State authority
Not required
USDOT number
Required first

State agency Idaho State Police, Commercial Vehicle Safety (intrastate safety rules and intrastate USDOT numbers); Idaho Transportation Department, DMV Commercial Vehicle Services (registration and motor carrier insurance filings)

What these terms cover

USDOT number: Required for intrastate carriers above the Rule 19 thresholds (26,001 pounds or more, combinations, more than 8 passengers, or placarded hazmat), except carriers exclusively hauling agricultural commodities, per the Idaho State Police DOT page. The Idaho Intrastate Application for Registration asks for the registrant's USDOT number, and ITD's IRP requirements form states an inactive or out-of-service USDOT number will suspend an IRP account.

Every figure above is a sourced agency fact, checked Sep 28, 2026.How we verify

Everything Idaho requires, in order

Each step is its own page, with the Idaho figures read from the agency that publishes them.

First, the federal side

Identical in every state, and not part of the Idaho sequence below: get your own authority, USDOT number, Form 2290, and what it all costs.

Before you file

  1. Start a trucking companyFederal steps plus this state, in order
  2. DOT numberState USDOT triggers and carrier numbers
  3. CDLLicense fees, testing, endorsements

State credentials

  1. Intrastate authorityState operating authority: rule, agency, fee
  2. Insurance requirementsState liability minimums and insurer filings

Plates, fuel tax and trip permits

  1. IRP registrationApportioned plates and cab cards
  2. IFTAFuel tax license, decals, filing
  3. Trip and fuel permitsTemporary IRP and IFTA permits

Permits and state taxes

  1. Trucking permitsEvery state permit a carrier may need
  2. Oversize permitsLegal limits, permit fees, escorts

How Idaho organizes trucking compliance

Three agencies split the work. The Idaho State Police Commercial Vehicle Safety unit writes the intrastate safety rules and decides who needs an intrastate USDOT number. ITD's DMV Commercial Vehicle Services registers trucks, takes the insurance filings, sells hazmat endorsements and trip permits, and issues oversize and overweight permits through ITRPS. The Idaho State Tax Commission runs IFTA, so the fuel tax license does not come from the DMV at all.

What you will find here

The intrastate authority page explains why no authority exists and what an Idaho-only carrier files instead. The insurance page covers the minimums ITD holds haul-for-hire trucks to. The permits pages cover legal size and weight, special permits keyed to route colors, and the trip and fuel permits for visiting trucks. The IRP and IFTA pages cover base-state plates and fuel tax, and the CDL and DOT number pages cover the driver and the carrier identifier.

Idaho quirks that surprise carriers

Heavy trucks pay a registration fee set by declared weight and the miles run the year before, which is how Idaho prices distance instead of a weight-distance tax. Idaho also allows more gross weight off the interstate than on it, and designated routes go higher still under an annual permit. Oversize escort and travel rules follow the red, black and white route colors on ITD's pilot car map.

Idaho filing walkthroughs

Step-by-step articles for the recurring Idaho filings, written against the same sourced records as the pages above.

Free calculators that cover Idaho

Frequently asked questions

Does Idaho require its own trucking operating authority?

No. Idaho's public utility title has no motor carrier chapter, and neither the Idaho State Police nor ITD offers an authority application or certificate. An Idaho-only carrier gets a USDOT number when the Rule 19 trigger applies, registers its trucks with ITD, and has its insurer file proof of coverage.

Which agency do I deal with in Idaho?

Mostly ITD's DMV Commercial Vehicle Services, which handles registration, IRP, insurance filings, trip permits and oversize permits. The Idaho State Police sets the intrastate safety rules and the USDOT number trigger. The State Tax Commission issues the IFTA license and takes the quarterly returns.

Does Idaho have a weight-distance tax?

No. Idaho files no mileage tax return. Distance enters the registration fee instead: heavy trucks pay an annual fee chosen by declared weight and the prior year's miles, paid up front or in quarterly installments.

Sources

The official sources used on this page. Check the current instructions before you file or pay.

  1. Department of Transportation (DOT) Numbers · Idaho State Police, Commercial Vehicle Safety
  2. Commercial Vehicle Services · Idaho Transportation Department, Division of Motor Vehicles

Haul Handbook publishes educational information about trucking registration and compliance requirements. This is not legal, financial, or tax advice. Rules, fees, and deadlines change; confirm with the agency before you file or pay.