Nevada Oversize/Overweight Permits


Nevada oversize permits are valid for five days. You must obtain a permit before entering the state.


Operating time lasts from one-half hour before sunrise to one-half hour after sunset, with the following exceptions:

  • Loads not exceeding 12 wide, 15′ high, 110′ long are permitted for night travel.
  • Loads not exceeding 14′ wide, 15′ high, 110′ long, are permitted for weekend travel except in restricted areas noted the “Restricted Travel” section.


Width: 8’6″
Height: 14′
Weight: (Gross weight is 80,000)
  • Single – 20,000 lbs.
  • Tandem – 34,000 lbs.
  • Tridem – 42,000 lbs.
  • Single Motor Vehicle – 40′
  • semi-trailer: 53′
  • Truck and Trailer – 70′
  • 75’maximum length (including rear overhang)
Overhang: 10 feet of front or rear overhang (or a total of 10 feet both to the front or the rear)


Width: 14′
Height: 15′
  • Single – 20,000 lbs.
  • Tandem – 46,725* lbs.
  • Tridem – 58,000 to 59,000* lbs.

* (5 axles) * (6 axles) * (7 axles)   *Depends on spacing

Length: 110′
Overhang: 15′ (must be the sum of both front and rear)

Note: 58,000-59,000 pounds is the tridem “bonus weight” in Nevada and is now allowed on one or two tridems. Additional tridems would get around 51,000 pounds. A tridem drive on a tractor can be permitted for the bonus weight (as one of the two tridems) as long as the spacing from the steer axle to center of middle drive axles is at least 18 feet. Loads in excess of these dimensions are reviewed on an individual basis only.


On a 2 or 3-lane highway:

  • Over 12′ – 1 escort
  • Over 14′ – 2 escorts
  • Over 16′ – 3 escorts
  • over 17′ – May require 2 escort pilot cars and Highway Patrol (reviewed on an individual basis)
Height  Over 15’6″ – 1 escort car with height pole
Length Over 110′ – Needs 1 rear escort car
Overhang Over 25′ front or rear – Needs 1 escort car

On Interstates & 4 or More-Lane Highways:

  • Over 14′ – (Needs 1 escort pilot car)
  • Over 16′ – (Needs 2 escort pilot cars)
  • Over 17′ – (Likely to require escort pilot cars and Highway Patrol)
Height Over 15’6″ – 1 escort car with height pole
Length Over 110′ – 1 escort
Overhang Over 25′ front or rear – 1 escort
Hoover Dam Area: Width 8’6″ to 10′ (max allowed) (alternate route is SR 163)
Note: Highway patrol needs at least 2 weeks’ notice for these loads. Permit office needs at least 2 days notice to permit a superload. The best route for overheight loads is US-6. Convoying must be specifically approved.


All vehicles wider than 8’6″ are required to have “Oversize Load” signs on the front and rear. Headlights must be on low beam. Signs shall only be displayed when necessary. Flags should be displayed if there is more than 4 feet of overhang.


To operate flashing, revolving, amber warning lights or even to travel with them turned off but uncovered, you must have a Nevada Light Permit. If you do not have a current amber light permit, the light must be covered (or removed) or you can be ticketed.


Spring thaw weight restrictions exist on some secondary routes from approximately February through April.


No weekend travel is permitted on I-80 between Sparks and the California state line, or on I-15 between Las Vegas (exit 33) and the California state line for loads exceeding 12′ wide, 15′ high, or 110′ long. There are no weekday curfews for Las Vegas, Reno, or other cities. Holiday travel is usually permitted for loads not exceeding 12′ wide, 15′ high, and 110′ long.

You can also obtain any trip and fuel permits you may need with our sister site!