What Is IRP?
IRP is a cooperative agreement among U.S. states and Canadian provinces that enables carriers to register commercial vehicles with one set of apportioned plates and report mileage across jurisdictions. Instead of registering separately in each state, carriers pay a proportional fee based on miles traveled in each jurisdiction.
Who Must Register in Oregon?
You need to register for IRP in Oregon if your operations include:
Commercial vehicles with a gross vehicle weight (GVW) over 26,000 lbs
Trucks with three or more axles regardless of weight
Vehicles used in interstate commerce (operate in two or more IRP jurisdictions)
Examples of qualifying vehicles include:
Tractor-trailers
Straight trucks
Combination vehicles
Buses or passenger carriers meeting the weight/axle criteria
Exemptions include vehicles used solely for recreational or personal use, farm vehicles under certain conditions, and vehicles registered fully in Oregon under different credentials.
Required Information for IRP Registration
When registering in Oregon, you’ll need the following:
Carrier Details
Legal business name and address
USDOT number and EIN
Contact info
Vehicle Information
Vehicle Identification Number (VIN)
GVW or gross combination weight
Make and model
Plate number and jurisdiction of base registration
Mileage Information
Estimated miles expected in each IRP jurisdiction (states/provinces)
Total miles for the fleet
Insurance Information
Proof of insurance covering all apportioned vehicles
How Fees Are Calculated
Oregon apportioned fees are based on:
Vehicle weight class
Total miles traveled in each jurisdiction
Base jurisdiction’s rate structure
Instead of simply paying Oregon fees, IRP allocates your registration costs to all member jurisdictions based on your reported mileage. So if your fleet travels more miles in Washington than Oregon, your share of fees adjusts accordingly.
How to Register
Step 1 — Gather Required Documents
Make sure you have all business, insurance, and vehicle information ready.
Step 2 — Complete the IRP Application
Submit by calling to (503) 386-4187
Step 3 — Pay Proportional Fees
Oregon DMV calculates apportioned fees and issues plates once payment is made.
Step 4 — Receive and Display Apportioned Plates
IRP plates must be displayed on all apportioned vehicles.
Renewal & Updates
IRP registrations are annual and must be renewed every year.
You must update the Oregon IRP account if:
You add or remove vehicles from your fleet
Mileage patterns change significantly
Your business information changes
Timely renewals avoid penalties and keep your fleet legal across all IRP member states.
Mileage Reporting Requirements
Carriers must maintain accurate mileage records for each vehicle, including:
Jurisdiction-by-jurisdiction miles
Total miles traveled
Fuel receipts or records used for IFTA reporting
These records help support your IRP and IFTA filings during audits.
Common Compliance Pitfalls
Failing to register before interstate operations
Misclassifying vehicle weight or axle count
Missing annual renewal deadlines
Not updating added or removed vehicles
Inaccurate mileage reporting
Non-compliance can result in fines, out-of-service orders, or issues in roadside inspections.