How to Add a Truck to Your Authority: MCS-150, IRP, and 2290

To add a truck to your authority, you update your FMCSA record with a revised MCS-150, add the vehicle to your liability insurance, register it under your IRP and IFTA accounts, file IRS Form 2290 for the heavy vehicle use tax, confirm your UCR fee bracket, verify a registered ELD is installed, and mark the truck with your legal name and USDOT number before it moves a load. Miss any one of these and the truck can be placed out of service at its first inspection.

Pull the Truck’s Paperwork Together First

Every form you file will ask for the same handful of facts. Getting them wrong, especially the VIN or the gross vehicle weight rating, creates problems across multiple agencies at once. Have the following in front of you before you open any portal:

Vehicle Identification Number (the 17-character number on the frame or dashboard plate)
Make, model, and year
Gross vehicle weight rating, which sets your Form 2290 bracket and affects insurance
Unladen (empty) weight
Purchase date and title
Your current USDOT and MC numbers
Proof of insurance covering the new unit

Update Your MCS-150 Through the FMCSA Portal

Your USDOT record needs to reflect the added vehicle. File an updated MCS-150 (Motor Carrier Identification Report) through the FMCSA Portal.¹ The MCS-150 is required biennially, but FMCSA expects carriers to update the record whenever vehicle or driver information changes.²

To file, you need your USDOT PIN and a Login.gov account linked to the FMCSA Portal. The portal lets you change vehicle information directly, without a paper form.¹

Do this step first. Your UCR registration pulls its vehicle count from the most recent MCS-150 on file, and an outdated count can leave you paying in the wrong fee bracket.³

Add the Truck to Your Insurance Policy

Every vehicle operating under your authority has to be covered by your liability policy. Federal minimums depend on cargo:⁴

General freight (non-hazardous): $750,000
Oil and most hazardous materials: $1,000,000
Bulk explosives, certain toxic gases, and radioactive materials: $5,000,000

Those are the federal floor; your existing policy may run higher. Call your insurer the day the truck is yours. Most can add a unit to a commercial auto policy within 24 hours and update the filing with FMCSA on your behalf.⁵ Running a truck that isn’t on the policy risks an out-of-service order and, if it continues, revocation of your authority.

Mark the Truck With Your USDOT Number

Federal law requires your legal name (or the trade name shown on your MCS-150) and your USDOT number on both sides of the vehicle before it moves. The lettering has to contrast sharply with the background and be readable from 50 feet away in daylight.⁶

Paint, magnetic signs, or vinyl decals are all acceptable as long as they stay legible. If the truck still shows a previous owner’s or another carrier’s name, your company name must appear preceded by “operated by,” followed by your USDOT number.⁶ This is one of the most commonly written violations at roadside, and it’s entirely avoidable.

File an IRP Supplement for the New Truck

If you cross state lines, the truck needs to be added to your International Registration Plan account. The IRP registers a fleet vehicle in your base state and issues a single apportioned plate and cab card good in all member jurisdictions.⁷

File a supplemental application with your base state’s IRP office. Bring the VIN, GVWR, purchase date, and the list of jurisdictions the truck will operate in. Fees are prorated for the months remaining in the registration year. Administrative fees for the supplement vary by state, from a few dollars to a few hundred.

Don’t run the truck interstate without the apportioned plate and cab card on board. Some states will issue a temporary permit while the registration processes; nothing at all invites a citation at the first weigh station.

Order IFTA Decals for the New Truck

Each interstate truck under the International Fuel Tax Agreement needs its own set of two decals, one for each side of the cab.⁸ Request the additional decals through your base state’s IFTA office. Most states charge under $10 for a set. The decals are what an inspector looks for; a truck without visible decals can be flagged even if your quarterly returns are current.

File Form 2290 for the Heavy Vehicle Use Tax

Any truck with a taxable gross weight of 55,000 pounds or more owes the federal Heavy Vehicle Use Tax, reported on IRS Form 2290.⁹ The annual tax runs from $100 at exactly 55,000 pounds up to $550 for trucks over 75,000 pounds, with a lower rate for logging vehicles.¹⁰

The tax period runs July 1 through June 30. A truck added mid-period is prorated. The filing deadline is the last day of the month after the month the truck first drives on a public highway. First road use in March means Form 2290 is due by April 30.¹¹

Once the IRS processes payment, you’ll get a stamped Schedule 1. Keep it accessible. States ask for it at vehicle registration and inspectors ask to see it in the cab.

Check Whether the New Truck Bumps Your UCR Bracket

The Unified Carrier Registration program charges an annual fee based on how many commercial motor vehicles you run.³ Adding a truck may move you up a tier. The 2026 fees:¹²

0–2 vehicles: $46
3–5 vehicles: $138
6–20 vehicles: $276
21–100 vehicles: $963
101–1,000 vehicles: $4,592
1,001+ vehicles: $44,836

The step that catches small carriers is going from two vehicles to three, where the fee triples. If the new truck moves you up, update your UCR before the next renewal. Because UCR pulls vehicle counts from the MCS-150, filing that update first keeps the numbers in sync.³

Confirm the ELD Is Installed and Still Registered

Any truck required to keep records of duty status has to have a registered Electronic Logging Device installed and working before its first load. The device must appear on FMCSA’s current list of registered ELDs. An unregistered or revoked device is treated as no ELD at all.

This matters right now. FMCSA has removed several devices from the registered list after the manufacturers failed to meet minimum requirements, and carriers using those revoked devices have to replace them with compliant units by April 14, 2026. After that date, drivers running a revoked device will be cited and placed out of service.¹³ If the truck is used and came with an ELD already in the dash, check that specific device against the current registered list before relying on it.

If a New Driver Comes With the Truck

Hiring a driver to run the new truck means running a pre-employment query in the FMCSA Drug and Alcohol Clearinghouse before that driver takes the wheel. This applies to every CDL hire, with no exceptions.¹⁴ Hiring a driver with an unresolved violation on record carries civil penalties that can reach $7,500 per occurrence. The query takes minutes and costs a few dollars.

BOC-3 Only If You’re Adding States

Adding a truck that stays within the states already covered by your BOC-3 doesn’t require a new filing. If the added truck also means running through states not on your current BOC-3, you’ll need to file a new one that lists process agents for every state you now operate in; FMCSA allows only one completed BOC-3 on file at a time.¹⁵ Process agent services handle this for a small fee and file electronically.

What Should Be in the Cab Before the First Load

Confirmation of the updated MCS-150 from the FMCSA Portal
Proof of insurance listing the new vehicle
The IRP cab card, with the apportioned plate on the truck
IFTA decals displayed on both sides of the cab
The stamped Schedule 1 from Form 2290
UCR registration confirmation reflecting the current vehicle count
Verification that the installed ELD is on FMCSA’s registered list

A missing cab card or an absent Schedule 1 can take a truck out of service even when the underlying registration is fully paid and current. What’s in the cab is what proves it.

1
Federal Motor Carrier Safety Administration. Form MCS-150 and Instructions – Motor Carrier Identification Report
2
Federal Motor Carrier Safety Administration. Updating Your Registration or Authority
3
Unified Carrier Registration Plan. Unified Carrier Registration Plan
4
eCFR. 49 CFR 387.9 – Financial Responsibility, Minimum Levels
5
Federal Motor Carrier Safety Administration. Insurance Filing Requirements
6
eCFR. 49 CFR 390.21 – Marking of Self-Propelled CMVs and Intermodal Equipment
7
International Registration Plan, Inc. About IRP
8
Pennsylvania Department of Revenue. International Fuel Tax Agreement and Motor Carriers Road Tax Compliance Manual
9
Internal Revenue Service. About Form 2290, Heavy Highway Vehicle Use Tax Return
10
Internal Revenue Service. Form 2290 (Rev. July 2025)
11
Internal Revenue Service. When Form 2290 Taxes Are Due
12
Unified Carrier Registration Plan. Fee Brackets – UCR
13
Federal Motor Carrier Safety Administration. FMCSA Removes Nine Devices From List of Registered Electronic Logging Devices
14
Federal Motor Carrier Safety Administration. When Must Current and Prospective Employers Conduct a Query – CDL
15
Federal Motor Carrier Safety Administration. Form BOC-3 – Designation of Agents for Service of Process