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Operating In Maryland

The Maryland Motor Carrier Handbook

Your best source for motor carrier and commercial vehicle rules and regulations in Maryland.


Preventive Maintenance Program

Details on the vehicle inspection program that is required on all commercial vehicles at least every 12 months or 25,000 miles, whichever occurs first.

IRP Manual

Provides basic information needed when preparing applications for registration and other information about how the International Registration Plan works in Maryland.

IFTA Filing

The Comptroller of Maryland website for IFTA E-file. This is a free service that allows a Maryland-based IFTA carrier to quickly and accurately file their quarterly IFTA report electronically.

Hauling Permits & SHA Resources

Information about hauling permits, including Oversize / Overweight permits, with links to services on the MDOT State Highway Administration's web site.

Truck Highway and Bridge Restrictions

Up to date information on Interstates, U.S. highways, State highways, and local area restrictions for trucks in Maryland.

Truck Weigh and Inspection Stations

List of the Truck Weigh and Inspection Stations throughout Maryland.

Truck Idling Regulations

The American Trucking Research Institute publishes a compendium of current idling regulations by state.

Port Security

Including the Transportation Workers Identification Credential (TWIC) Access Requirements to the Port of Baltimore.