Idaho Oversize Load / Pilot Car Requirements
Pilot / Escort Vehicle & Time Travel Requirements

Oversize Load Permit Is Required:
Width: Over 8' 6"
Height: Over 14' 0"
Length: Semi-trailer over 48' 0"
Weight: Over 105,500 lbs. GVW (20,000 lbs. single axle or 37,800 lbs. tandem axle)

Oversize Load Times Of Movement:
1/2 hour before sunrise to 1/2 hour after sunset
If 10′ wide or less, travel is allowed 24/7
Loads 10′ wide, 14′ 6″ high, 100′ long on a 2 lane or 120′ long on a 4 lane may travel 24/7
Travel prohibited on New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day & Christmas Day
Permit office is closed on the above holidays plus Washington's Birthday, Columbus Day & Veteran's Day

Phone Numbers, Addresses and Websites:
Idaho Road Conditions: (888) 432-7623
Idaho State Police: (208) 236-6067
Oversize Permits: (208) 334-8420  (208) 334-8419
Trip Permits: (208) 334-8692
Fuel Permits: (208) 334-7834

Idaho Transportation Dept.
3311 W. State Street
P.O. Box 7129
Boise, ID   83707
Office hours:  7am - 5pm  Monday. - Friday (MT)

Idaho DOT Website
Coast 2 Coast Online Permits
Idaho Pilot Car / Escort Vehicle is Required:
2 lane highways:
Over 12′ wide or 16′ high requires 1 pilot car
Over 100′ long requires 1 pilot car
Over 14′ wide requires 2 pilot cars
Interstate Highways:
Over 15′ wide or 115′ long requires 1 pilot car
Over 16′ high requires 1 pilot car

Idaho Pilot Car Vehicle Requirments:
Passenger car or light truck authorized by the Vehicle Size & Weight Specialist
Sign measuring 5′ X 10″ with black letters (8″ high) on yellow background stating "OVERSIZE LOAD"
Flashing or rotating amber lights mounted at each end of the required sign above the roof. As an alternative a pilot/escort vehicle may display one rotating or flashing amber beacon visable from a minimum of 500′
Two way radio
One 18″ STOP/SLOW paddle sign
Three bi-directional emergency reflective triangles
A 5 lb B,C fire extinguisher
A reflective orange vest, shirt or jacket
Two additional "OVERSIZE LOAD" signs
A non metallic height pole if escorting high loads
Flags are not required

Idaho Pilot Car Operator Requirements:
Valid drivers license

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