Vermont OSOW permits

Updated: Sep 2

Permits valid for ten travel days. Must have a permit prior to entering the state.

Vermont permitting system:

Contact phone number: 1-802-828-2064


One-half hour before sunrise to one-half hour after sunset. No weekend travel for loads over 10’ 6” wide, 100’ in length or 108,000 pounds gross. Movement may be restricted on Friday afternoons between July 1st and Labor Day. Overweight only and capable of traveling with traffic flow are not restricted to daylight travel.


Permits for loads not originating or delivering in Vermont are only issued if travel through Vermont is the most direct route. Vermont tries not to permit loads not originating or ending in Vermont. Unless otherwise posted, speeds are not to exceed 45 miles per hour on state highways for loads exceeding 90,000 pounds or 10 feet in width, over height, or over 75’ long. No travel on Holidays for loads over 10’ 6” wide, 100’ in length or 108,000 pounds gross (double-check with Sammons Permit Office).


Width: 8'6"

Height: 13'6

Length: 53' semi-trailer on Interstate and designated highways (43' Kingpin to the center of the rear axle), 75' overall length. 48' trailer on non-designated highways.

Weight: 80,000 Gross Single – 20,000 designated highways, 22,400 other roads Tandem – 34,000 designated highways, 36,000 other roads Tridem – Federal Bridge Formula (34,000 for 8' axle spacing, 42,500 for 9' of spacings)


Width: 14'11”

Height: 13'11”

Length: 99'

Overhang: Not to exceed one-third the length of the load.

Weight: “Department decides on a case-by-case basis.” Loads exceeding these dimensions or exceeding 150,000 pounds gross weight are treated as super loads and require an engineering review for state highways. This can take up to 10 working days. The cost for an engineering review is $800 for loads under 150,000 pounds gross, $2000 for loads from 150,001 to 200,000 pounds gross, and even higher for heavier loads.


Width: At 12' or greater – 1 escort

Height: Usually not required (over 14’ height is very restricted)

Length: At 80' or greater – 1 escort

Overhang: At 15' or greater – 1 escort

Note: A second escort may be required at the state’s discretion.


"Oversize Load" sign required on the front of an oversize vehicle and on the rear of the vehicle or load, for any O/D move. Mount flags (at least 18" square) on corners and extremities of over width and overlength loads or vehicles. For overlength loads or rear overhang which exceeds 4 feet, one flag shall be displayed at the end of the overhang if less than 2 feet wide, and two flags if the overhang is 2 feet wide or greater.

Loads at and over 12 feet wide or 80 feet overall length require a flashing amber light on the towing vehicle. Signs are not required for movements that are overweight only

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