State Highway Administration

EMAIL - [email protected]

Phone- 1-800-543-4564

• TWIS Contact Information (PDF, 10KB)
• Truck Weigh & Inspection Station locations
• Public Rest Areas
• Private Truck Stops

Truck Weigh & Inspection Operations
The Motor Carrier Division (MCD), in cooperation with the Maryland State Police (MSP), the Maryland Transportation Authority Police (MdTAP) and allied law enforcement agencies certified to enforce motor carrier law is responsible for the safe movement of commercial motor vehicles (CMV) along Maryland  highways. The MSP and MdTAP operate 13 safety inspection stations to check CMV's for compliance with state and federal safety requirements.  These sites employ fixed scales and inspection facilities with several having weigh-in-motion (WIM) devices to pre-screen for weight violations.  Additional electronic screening for CMV credentialing (e.g. fuel tax, safety rating, etc.) is also being deployed for increased efficiency and effectiveness in maintaining CMV safety. For further information on the Truck Weigh and Inspection Program, call the Motor Carrier Division, 7491 Connelley Drive, Hanover, Maryland 21076, Telephone 410-582-5734 .

For further information on the Truck Weigh and Inspections Stations, call the Maryland State Police, Commercial Vehicle Enforcement Division, 901 Elkridge Landing Road, Room 300, Linthicum Heights, MD 21090, Telephone 410-694-6100 .

Gross Weight of Vehicles

Based upon Maryland statistical data, 1,800,000 trucks and commercial vehicles are weighed and 95,000 vehicles are inspected each year. Overweight vehicles, in addition to being a potential safety hazard to highway traffic, put a strain on existing pavement and the design life expectancy of roads and bridges. To minimize the damage to bridges and pavement caused by too heavy vehicles, Maryland has adopted the federal bridge formula and table, commonly known as the “Bridge Table” which is detailed on pages 35 and 36 in the Maryland Motor Carrier Handbook (PDF, 946Kb). Maryland deploys Weigh-In-Motion (WIM), static scales and portable scales to weigh vehicles at its weigh and inspection stations and pull-off sites.

Width of Vehicles

The maximum allowable vehicle width in Maryland is 102 inches, on interstates and designated systems. (96 inches on all other highways). The width of a vehicle includes any load that it carries and shall be exclusive of safety and energy conservation devices, such as side mirrors, turn signal lamps, marker lamps, steps and handholds for entry and egress. For a detailed description of the Maryland vehicle width law, refer to Title 24, Subsection 102” of the Maryland Vehicle Law.

Height of Vehicles and Loads

The vehicle and load height limit in Maryland is 13’ 6” inches. To obtain hauling permits for overheight loads and vehicles, contact State Highway Administration, Motor Carrier Division, Hauling Permits Section at 410-582-5717 or 1-800-846-6435 .

Length of Vehicles and Loads

The length of a vehicle includes its front and rear bumpers and any part of its load that extends beyond the vehicle, but is exclusive of non-load bearing safety and energy conservation devices, such as marker lamps, steps and handhold for entry and egress, front-mounted refrigeration units, and front-mounted air compressors. Refer to the Maryland Vehicle Law Title 24, subsection 104.1 for a list of the different vehicle length limits in Maryland .

Permits for excess size, height and weight

To obtain hauling permits for oversized, overheight and overweight vehicles, contact State Highway Administration, Motor Carrier Division, Hauling Permits Section at 410-582-5717 or 1-800-846-6435 .

Weigh/Inspection Contact Information

TRUCK WEIGH & INSPECTION STATIONS

PRIVATE TRUCK STOPS

PUBLIC REST AREAS