Telephone: 207-624-9000, ext. 52135
Fax: 207-624-9062
Maine is a member of the International Registration Plan (IRP). Maine-registered motor vehicles that travel to another IRP jurisdiction, and which have a gross weight or combined gross weight in excess of 26,000 pounds or three or more axles on the power unit, must be registered in the IRP. Qualified motor vehicles from another IRP jurisdiction must have Maine on the cab card or have a valid Maine IRP trip permit prior to entering Maine. Vehicles from non-IRP jurisdictions may operate into or through Maine in interstate commerce only. Non-apportioned vehicles operating intrastate must register in Maine or obtain trip permits. Motor vehicles are registered on the basis of combined gross weight - total weight of the vehicle and maximum load to be carried. For combination vehicles, the gross weight is on the power unit. A motor vehicle may not be operated in excess of the maximum weight allowed for its configuration without additional permits.
APPORTIONABLE VEHICLE “Apportionable Vehicle” means (except as provided below) any Power Unit that is used or intended for use in two or more Member Jurisdictions and that is used for the transportation of persons for hire or designed, used, or maintained primarily for the transportation of property, and:
- has two Axles and a gross Vehicle weight or registered gross Vehicle weight in excess of 26,000 pounds (11,793.401 kilograms), or
- has three or more Axles, regardless of weight, or
- is used in combination, when the gross Vehicle weight of such combination exceeds 26,000 pounds (11,793.401 kilograms).
For definitions and entire rules, please refer to Chapter 162 (Word) and Chapter 169 (Word).
The following forms are available online in Adobe Acrobat (PDF) format.
- 72 Consecutive Hour Trip Permit (PDF)
- IRP Certification (PDF)
- IRP Uniform Distance Schedule - Schedule B (PDF)
- IRP Application for Changes - Schedule C (PDF)
- IRP Duplicate Credentials (PDF)
To obtain information and arrange to get the required forms to open a New IRP Account, please contact the IRP Unit at 207-624-9000, ext. 52135.