Idaho handles motor carrier credentials through ITD and ties registration tightly to insurance. Here is a plain-language overview, with the official sources to confirm it.
State registration and authority
Idaho regulates and registers motor carriers through the Idaho Transportation Department (ITD), Commercial Vehicle Services. Idaho law requires every motor vehicle on public highways to be continuously insured, and for intrastate haul-for-hire vehicles ITD requires a Form E insurance certificate on file. Verify whether a distinct intrastate authority document applies to your operation with ITD.
The Form E vs BMC-91X split
Idaho's notable mechanic is the filing split: a Form E certificate for intrastate haul-for-hire registration, and a BMC-91X for IRP and interstate haul-for-hire. Submitting the wrong certificate, or assuming one federal filing covers intrastate registration, stalls the registration. Hazmat follows the higher federal tiers.
Insurance minimums
Idaho's insurance requirements vary by commodity, carrier type, vehicle size, and interstate versus intrastate, with hazmat following federal tiers. The exact intrastate dollar minimum should be confirmed with ITD rather than assumed, since the state's published guidance does not state a single figure.
Cancellation and your registration
A critical Idaho rule: an insurance cancellation reported to ITD can trigger revocation of the vehicle's registration, parking the truck until coverage is restored. Keeping the filing continuously in force is essential, not just having a policy.
Workers compensation and federal rules
Idaho generally requires workers comp for employers with one or more employees, including part-time and seasonal, before the first hire, through the Industrial Commission; it is an open market, not monopolistic. And most trucking compliance is still federal, your USDOT number, interstate authority, the BMC-91, MCS-90, BOC-3, and UCR. Verify federal rules with the FMCSA and workers comp with the Industrial Commission.
Verify before you rely on this
Idaho ties registration to a continuous insurance filing, and a lapse can revoke your registration. This page is general information for Idaho carriers, not legal or FMCSA advice, and most trucking compliance is federal while state rules change. Confirm current requirements with the FMCSA and the Idaho state agencies below before you rely on this.
Last verified June 2026 by Vantage Point Risk.
