• Although not required, some vehicles having a gross vehicle weight of 26,000 pounds or less may be registered under the International Registration Plan (IRP).
• Some jurisdictions will grant reciprocity to non-IRP apportionable vehicles while others will require a trip permit or apportioned registration.
• It is important to verify the requirements of the jurisdiction of travel before entering the jurisdiction.

Although exempt from the requirement to obtain apportioned plates, a two-axle truck or truck-tractor or a power unit in a combination of vehicles having a gross vehicle weight of 26,000 pounds or less may be registered under the International Registration Plan (IRP).

There may be good reason to apportion a vehicle even though it is not required to be apportioned under the IRP. If a vehicle is not apportioned, the vehicles become subject to individual jurisdiction registration laws. Some jurisdictions will grant reciprocity to non-IRP apportionable vehicles while others will require a trip permit (or would accept full apportioned registration). Frequent interstate travel, or intrastate travel within a jurisdiction, may be a reason to apportion a non-apportionable vehicle.

It is important to verify the requirements of the jurisdiction of travel before entering the jurisdiction.