Does a Michigan truck need a USDOT number for in-state work?

Yes. Michigan requires a USDOT number for in-state commercial vehicles at 26,001 lb and over (GVWR, GCWR or actual weight), even if they never cross a state line.

Checked against Michigan’s official sources in September 2026.

The rule in Michigan

Who it covers: Intrastate carriers operating CDL-class vehicles, for-hire and private. Separately, every intrastate for-hire carrier needs Michigan intrastate operating authority (CVED Authority) from MSP before operating, whatever the vehicle weight.

The weight line: Intrastate-only vehicles that do not need a CDL (generally under 26,001 lb, no placarded hazmat, fewer than 16 passengers) are outside Michigan's adoption of the federal carrier-registration rules, so they do not need a USDOT number. They are still subject to the federal driver, driving and equipment rules (parts 391-393). MSP says a USDOT number is required for intrastate vehicles 'over 26,001 lbs.'

Exemptions the state lists:

Intrastate vehicles that are not CDL-class commercial motor vehicles (49 CFR 383.5) are outside most of the Act but remain subject to 49 CFR parts 391-393
Farm vehicle drivers (intrastate): exempt from several driver-qualification, hours-of-service and medical-card provisions
Implements of husbandry (intrastate)
Government-owned commercial vehicles, except parts 382, 391, 392, 393 and 383.71(h)
School buses
Buses of listed public transit agencies

“Intrastate Only Carriers and Wrecker Companies Conducting Police Initiated Tows (Non-consensual Tows): Valid USDOT number, if applicable (required for vehicles with GVWR over 26,001 lbs.)” source

“subsection (1)(b) and sections 5(8) and 6(1) do not apply to a vehicle that is not a commercial motor vehicle as defined in 49 CFR 383.5 and that is operated in intrastate commerce as defined in 49 CFR 390.5.” source

The rule: Motor Carrier Safety Act of 1963, MCL 480.11a (adoption of federal regulations; subsection (3) intrastate non-CDL carve-out). For-hire authority: Motor Carrier Act, 1933 PA 254.

Who to ask: Michigan State Police, Commercial Vehicle Enforcement Division (MSP/CVED), Regulatory & Credentialing Section

Safety rules for in-state trucks

Michigan adopts 49 CFR parts 40, 382, 383, 385, 387, 390-393 and 395-399 (and others), and 'interstate' is read as 'intrastate or interstate'. Intrastate vehicles that are not CDL-class CMVs are excluded from that adoption except for parts 391-393. (MCL 480.11a(1)(b) and (3))

Intrastate trucks below the CDL class are still subject to the federal driver qualification, driving and parts/equipment rules (parts 391-393), even though they do not need a USDOT number.
Intrastate-only carriers doing seasonal construction-related work have state-specific hours limits: 70 hours in 7 days or 80 in 8, and 12 hours driving or 16 on duty per day.
Every intrastate for-hire carrier must hold Michigan intrastate operating authority (CVED Authority) before operating.

The federal lines, which apply in Michigan too

10,001 lb and interstate commerce: a USDOT number, a medical card, a driver qualification file, the hours-of-service rules and daily inspections (49 CFR 390.5).
26,001 lb: a CDL, for a single vehicle or a combination towing more than 10,000 lb (383.5). The CDL rules cover in-state driving as well (383.3), and drug and alcohol testing follows the CDL (382.103).

Check your own truck and trailer

Questions

Does Michigan require a USDOT number for intrastate trucks?

Yes. Michigan requires a USDOT number for in-state commercial vehicles at 26,001 lb and over (GVWR, GCWR or actual weight), even if they never cross a state line.

What is the CDL weight in Michigan?

The same as everywhere: 26,001 lb for a single vehicle, or a combination of 26,001 lb towing more than 10,000 lb. The federal CDL rules apply to in-state driving too (49 CFR 383.3), and drug and alcohol testing follows the CDL (382.103).

Who administers the rule in Michigan?

Michigan State Police, Commercial Vehicle Enforcement Division (MSP/CVED), Regulatory & Credentialing Section.

What we could not confirm

The State Police page says 'over 26,001 lbs', while the federal CDL definition it rests on says 26,001 lb or more. Treat a vehicle of exactly 26,001 lb as covered.
Whether a for-hire carrier with only trucks under 26,001 lb needs a USDOT number to get Michigan's for-hire authority was not confirmed; the State Police say 'if applicable'.

Sources

General information, not legal advice. It summarises Michigan’s published rules as read in September 2026; confirm with the Michigan State Police or FMCSA.