Over Dimensional Vehicle Permit Office
Department of Transportation
1263 South Stewart Street, Room 101
Carson City, NV 89712
PHONE: (775) 888-7410 or 800-552-2127

Hours of Business

7:30 AM - 4:30 PM (Pacific time)


When and how many pilots cars are needed


  • Greater than 12’ (on 2 and 3 lane roads) requires 1 escort (Front)
  • Greater than 14’ (on 2 and 3 lane roads) requires 2 escorts (Front and Rear)
  • Greater than 14’ (on 4 or more lane roads) requires 1 escort (Rear)
  • Greater than 16’ (on 4 or more lane roads) requires 2 escorts (Front and Rear)
  • Vehicles greater than 8’6″ wide are prohibited on some roads that may warrant pilot cars


  • Over 15’6’’ requires 1 escort (Front with clearance pole)


  • Greater than 110’ requires 1 escort (Rear) *note: can go up to 120’ with some steerable trailers if there is a steerable letter on file.
  • Vehicles exceeding 70’ long are prohibited on some roads or may warrant pilot cars.


  • Greater than 25’ in front requires 1 escort (Front)
  • Greater than 25’ in rear requires 1 escort (Rear)

Super loads

Super loads are those exceeding:

  • A width of 17’ (on 2 or 3 lanes) or 19’ (on 4 or more lanes)
  • A height of 18’
  • A length of 200’

Loads 20’ wide on 2 or 3 lanes or 24’ wide on 4 or more lanes and over 18’ high may require route surveys to be submitted.

Escort vehicle requirements can differ significantly by state in terms of mandatory driver qualifications, training, certifications, vehicle weights, obligatory signage/flags/lighting, necessary onboard equipment, and more. The ODS team can provide you with all additional requirements specific to your route.

Operating Times

Permitted movement is possible 24 hours a day if not exceeding the following dimensions: 15’ height, 12’ width, 110’ length, 15’ overhang, all legal and pre-approved weights.

For larger dimensions, daytime travel is usually required (from a half hour before sunrise until a half hour after sunset).

Night travel may be requested if maximum dimensions do not exceed 14′ wide, 15′ high, 110′ long, or a 15′ overhang. Hours of darkness are a half hour after sunset until a half hour before sunrise.


Travel restrictions apply on New Year’s Day, Nevada Day (last Friday in October), M.L. King’s Birthday (third Monday in January), Veteran’s Day (November 11), President’s Day (third Monday in February), Thanksgiving Day (fourth Thursday in November), Memorial Day (last Monday in May) Labor Day, Family Day (fourth Friday in November), and Christmas Day.

Adverse weather

  • NRS 484.643 requires the use of chains or snow tires on motor vehicles driven on any street or highway under icy or snowy conditions when the highway is marked or posted with signs requiring the use of chains or snow tires.
  • NRS 484.6432 requires operators of all vehicles of more than 10,000 lbs.(GVW) to install chains when chains or snow tire requirements are in effect.
  • Vehicles over 10,000 lbs. GVW are permitted in chain control areas when equipped with chains or Automatic Traction Devices (MTD) on drive axles. Trailer axles must be chained.