Cab Card
A cab card is an IRP registration document carried in the truck that shows the jurisdictions and weights tied to apportioned registration.
What you actually need to know
Interstate carriers using IRP should keep the cab card available in the vehicle. It helps show where and how the truck is registered.
The cab card should match the vehicle and registration details. If weight, fleet, or jurisdiction details are wrong, fix them before operating.
During inspections or registration checks, the cab card is part of your roadside folder along with registration, insurance, IFTA, annual inspection, and load documents.
Common mistakes / confusions
- Cab card is not the same as IFTA decal.
- It is tied to apportioned registration.
- Keep it accessible, not buried in office paperwork.
Related terms
Where to go next
TruckStart is an educational tool, not a law firm, accounting firm, insurance agency, freight broker, or filing service. Always verify current requirements directly with FMCSA, your state, the IRS, and qualified professionals before making business decisions.