The IRP is a plan for apportioned registration, based on mileage, for commercial vehicles engaged in interstate operations in member states or Canadian provinces. Maryland officially became the 37th IRP jurisdiction on March 31, 1987.
IRP Program to Adopt Full Reciprocity Plan in 2015
Beginning in 2015, cab-cards will show all jurisdictions. No more "add state or province. No more "over 100 percent fees" for added jurisdictions. If you have IRP, there will be no more trip permits. All states and provinces will be implementing the change. See more
If your vehicle travels in Maryland and in other IRP jurisdictions and is used for the transportation of persons for hire or is designed, used, or maintained primarily for the transportation of property, and
- is a power unit having two axles and a gross vehicle weight in excess of 26,000 pounds; or
- is a power unit having three or more axles, regardless of the weight; or
- is used in combination, when the weight of such combination exceeds 26,000 pounds gross vehicle weight.
Two axle vehicles or combinations thereof, having a gross weight of 26,000 pounds or less may be issued apportioned registration at the option of the registrant.