Maryland Oversize Load / Pilot Car Requirements
Oversize Load Rules & Regulations

Oversize Load Permit Is Required:
Width: Over 8' 0"
Height: Over 13' 6"
Length: Semi-trailer over 53' 0" (with restrictions -  Visit Oversize Permit Manual)
Weight: Over 80,000 lbs. GVW (20,000 lbs. single axle or 34,000 lbs. tandem axle)

Oversize Load Times Of Movement:
1/2 hour before sunrise to 1/2 hour after sunset, 1/2 hour before sunrise to 12pm on Saturday
No travel on Sunday
If load exceeds 45 tons GVW, 100′ in length or 12′ in width, travel on I-495 / I-95 / I695 from 9am - 3:30pm
If load exceeds 14′ width or greater travel restricted to 9am - 3:30pm on any highway
Travel prohibited on New Years Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day & Christmas Day

Phone Numbers, Addresses and Websites:
Maryland Road Conditions: (800) 253-2515 or (410) 582-5650
Maryland State Police: (410) 653-4200
Oversize Permits: (410) 582-5733  or (800) 846-6435   Fax: (800) 945-3416
Trip Permits: (800) 749-6058 or (800) 937-6329
Fuel Permits: (410) 260-7215 or (888) 784-0141

Dept. of Transportation
State Highway Administration
Hauling Permits Section
7491 Connelley Drive
Hanover, MD   21076
Office hours: 7:30am - 4:30pm, (ET)

Maryland DOT Website
Oversize Permit Manual
Maryland Emergency Travel Information
Motor Carrier Handbook
Coast 2 Coast Online Permits

Find a Pilot Car Provider in Maryland
Maryland Pilot Car / Escort Vehicle is Required:
Over 13′ - 14′ wide (except mfg. homes) requires 1 pilot car
Over 14′ wide (including mfg. homes) requires 2 pilot cars
Over 85′ - 140′ long requires 1 pilot car
Over 140′ long requires 2 pilot cars
14′ 6″ high or greater requires 1 pilot car with height pole
Over 60 tons GVW requires 1 pilot car
If road is too narrow to pass safely, or if traffic will have to be diverted / stopped or weather / road conditions justify, 2 pilot cars are required
Police Escort required When:
16′ 0″ wide or greater
Over 60 tons GVW
When traffic has to be diverted or stopped or if it will affect two or more lanes of traffic on a highway having only one lane in each direction

Maryland Pilot Car Vehicle Requirments:
No vehicle stipulations in regulations
"OVERSIZE LOAD" / "WIDE LOAD" sign (12″ X 5′) with black lettering (8″ high) on yellow background
Amber or yellow oscillating or rotating roof light (at least 3″ in diameter), visible to front and rear, flashing warning lamps shall be used when vehicle is travelling 20 mph or less than posted speed
Flags are not stipulated in regulations
CB or two way radio

Maryland Pilot Car Operator Requirements:
No stipulations found in regulations