IRP Cab Card: What It Is and How to Read It
Your IRP cab card is the official registration document that proves your vehicle is legally registered in every jurisdiction listed on it. It must be carried in the vehicle at all times. This guide explains what a cab card is, what information it contains, how to read it, what happens if you do not have it, and how to handle replacements.
Required
In Vehicle at All Times
1 Per Vehicle
Vehicle-Specific
Checked
At Every Inspection
Annual
Updated at Renewal
O Trucking Editorial Team
Trucking Industry Experts
Fact-Checked by O Trucking Compliance Team
5+ years helping carriers maintain IRP compliance and cab card accuracy
Sources:
This article was written by the O Trucking editorial team with 9+ years of combined trucking industry experience. Learn more about us.
O TruckingIRP Cab Card: What It Is and How to Read It (2026 Guide)
What Is an IRP Cab Card?
A cab card is the registration credential issued under the International Registration Plan (IRP). It serves as proof that your commercial motor vehicle is properly registered to operate in all the jurisdictions listed on the document. Think of it as a multi-state registration card — instead of carrying separate registration papers for every state, your cab card consolidates all of them into one document.
The cab card is issued by your base state when you complete your IRP registration. Each vehicle in your fleet gets its own cab card. If you have three trucks registered under IRP, you will have three separate cab cards — each one specific to that vehicle and its registered jurisdictions.
Cab Card vs Apportioned Plates
Information on a Cab Card
While the exact format varies slightly by state, every IRP cab card includes these essential fields:
Registrant Information
Business name, address, IRP account number, and USDOT number. This links the cab card to your federal safety record and your IRP account.
Vehicle Information
Year, make, VIN, unit number, plate number, vehicle type (tractor, straight truck, bus), and number of axles. This ensures the cab card matches the specific vehicle it is in.
Weight Class / GVW
The gross vehicle weight (GVW) or combined gross vehicle weight (CGVW) the vehicle is registered for. This determines your registration fee tier in each jurisdiction.
Jurisdictions List
Every state and province where the vehicle is registered. This is the core of the cab card — it tells enforcement officers which jurisdictions you are authorized to operate in. Each jurisdiction is typically listed with the weight class registered.
Registration Period
The effective dates — start and expiration dates for the registration year. IRP registration is annual, so your cab card is valid for one year from the effective date.
Base Jurisdiction
Your base state is prominently identified. This tells enforcement which state issued the registration and where your records are filed.
How to Read Your Cab Card
When you receive your cab card, verify every field before putting it in the truck:
Check your VIN: Confirm the Vehicle Identification Number matches the actual truck. A VIN typo means the cab card is not valid for your vehicle and you could be treated as unregistered.
Verify all jurisdictions: Make sure every state where you plan to drive is listed. If a state is missing, you will need a trip permit for that state or a supplemental IRP application to add it.
Confirm the weight class: The registered weight should cover your maximum operating weight (tractor + loaded trailer). If you are registered at 80,000 lbs GVW but your actual loaded weight exceeds that, you could face penalties.
Note the expiration date: Know exactly when your registration expires. Set a reminder at least 90 days before to start the renewal process through your base state.
Check plate number: Confirm the plate number on the cab card matches the physical plates on your vehicle. Mismatches raise red flags during inspections.
Keep a Copy in Your Office Too
Carrying Requirements
Federal and state regulations require that the cab card be carried in the vehicle at all times during operation. This means:
In the cab, accessible: The cab card should be stored where the driver can quickly retrieve it — typically in a document holder, glove compartment, or with other registration papers. Officers expect to see it within seconds of requesting it.
Original required: Most jurisdictions require the original cab card, not a photocopy. Some states are beginning to accept digital versions, but this varies. Check with your base state on their policy regarding electronic cab cards.
Vehicle-specific: Each cab card is tied to one vehicle. You cannot use one truck's cab card in a different truck, even if both are registered under the same IRP account.
What Happens at Roadside Without a Cab Card
Not having your cab card during a roadside inspection or weigh station stop creates serious problems:
Treated as Unregistered
Without a cab card, officers cannot verify your registration. You may be treated as if the vehicle has no valid registration in that jurisdiction, even if your IRP account is fully paid and current.
Forced Trip Permit Purchase
You may be required to purchase an individual state trip permit on the spot to continue operating. This is an additional cost on top of what you already paid through IRP.
Fines and Violations
Citations for operating without proper registration documents vary by state but can range from $100 to $500+. These violations also go on your inspection record and can impact your CSA score.
Potential Out-of-Service
In some cases, particularly if you are operating in a state not covered by your IRP at all, you could be placed out of service until proper registration is obtained.
Replacing a Lost or Damaged Cab Card
If your cab card is lost, stolen, or damaged beyond legibility, contact your base state's IRP office immediately to request a replacement:
Contact your base state: Call or visit your base state's IRP office. Most states can process replacement cab cards within a few business days. Some states offer expedited processing for an additional fee.
Replacement fee: Most states charge a small replacement fee, typically $5–$25 per cab card. The fee covers administrative processing and printing.
Temporary authorization: While waiting for the replacement, ask your base state if they can provide a temporary cab card or letter of authorization that you can carry in the vehicle. Some states email or fax these immediately.
Keep operating carefully: Some enforcement officers will accept proof of IRP registration (such as a printout from your base state's system) in lieu of the physical cab card. However, this is at the officer's discretion — do not rely on it.
Temporary Cab Cards
Temporary cab cards are issued in specific situations and are valid for a limited time:
New registration processing: If you just applied for IRP and your permanent cab card has not arrived yet, most states issue a temporary cab card valid for 30–90 days. This allows you to start operating while the permanent documents are processed. See our IRP registration guide for the full process.
Supplemental applications: When you add jurisdictions or change vehicle information, a temporary cab card may be issued reflecting the updates until the permanent replacement arrives.
Renewal processing: During the renewal period, if your new cab card has not arrived before the old one expires, a temporary extension or temporary cab card bridges the gap.
Do Not Carry an Expired Cab Card as Your Only Document
Digital Cab Card Options
The trucking industry is slowly moving toward digital documentation. Some developments regarding electronic cab cards:
Some states accept digital: A growing number of states accept electronic cab cards displayed on a tablet or phone. However, acceptance is not universal — not all enforcement officers or states are set up to verify digital documents.
Keep the paper original as backup: Until digital acceptance is universal, carry the paper cab card as your primary document. A digital copy is a good backup but should not be your only version.
Check your base state's policy: Your base state's IRP office can tell you whether they offer digital cab cards and which jurisdictions currently accept them. This is an evolving area — policies change as technology adoption spreads.
Common Cab Card Mistakes
These are the most frequent cab card problems we see carriers encounter:
Wrong cab card in the truck
Putting Truck A's cab card in Truck B. Each cab card is vehicle-specific. In a multi-truck fleet, double-check that the right card is in the right vehicle after renewals or changes.
Missing jurisdictions
Taking a load through a state not listed on your cab card. Before accepting loads that route through new states, check your cab card. If the state is not listed, you need a trip permit or supplemental IRP application.
Expired cab card in the vehicle
Forgetting to swap the old cab card for the new one after renewal. When your new cab card arrives, immediately replace the old one in the truck.
Not verifying accuracy
Assuming the cab card is correct without checking. VIN errors, wrong weight class, or missing jurisdictions happen. Always verify a new or updated cab card before putting it in the truck.
Illegible or damaged card
A cab card that is torn, water-damaged, or faded to the point where information is unreadable. Treat this the same as a missing cab card — request a replacement immediately.
How Our Team Helps with Cab Card Compliance
Route verification against your cab card
Before assigning a load, we verify the route states match the jurisdictions on your cab card. If a load routes through an unregistered state, we flag it and help you weigh the options: trip permit, supplemental application, or alternative route.
Renewal tracking
We track cab card expiration dates and remind carriers well ahead of renewal deadlines. Since replacement cab cards take days to arrive, early renewal prevents gaps in valid documentation.
New carrier orientation
For carriers just getting started, we walk through what a cab card is, how to verify it, and how it fits with your other compliance documents: DOT number, MC authority, BOC-3, IFTA decals, and UCR receipt.
Need Help Keeping Your Cab Card Current?
Our compliance team verifies cab card coverage before every dispatch, tracks renewal dates, and helps carriers ensure their IRP documentation is always accurate and current.