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Arizona Oversize / Overweight Regulations

What is considered as "Oversized Load" in Arizona?


Width: 8' (Roadways <12 ft)

Width 8' 6" (Roadways 12' &+)

Height: 13' 6"

Length: Single Vehicle - 40'

Truck-semi-trailer - 57' 6"

Legal Overhang - 3' Front; 6' Rear

What is considered as "Overweight Load" in Arizona?

Weights Single Axle: 20,000 LB.

Tandem Axle: 34,000 lb.

Tridem: 42,000 lb.

Gross Weight: 80,000

Arizona Oversize / Overweight Permits

Arizona Permit Department Contact Information


Fax: 623-932-2441

7:00 AM - 5:00 PM Pacific

Arizona Pilot Cars / Escorts

Escort Vehicle Requirements

  • Over 14' wide, Over 16' high or Over 120' long - 1 Pilot Car or more required
  • A# Highways Over 12’ wide - 1 Front Pilot Car and 1 Rear Pilot Car
  • Front Overhang 20’ or more - 1 Front Pilot Car
  • Rear Overhang 20’ or more - 1 Rear Pilot Car

Service Requirement

1. A permittee transporting an oversize or overweight vehicle or load shall use all escort vehicles required by the Department as a condition of special permit issuance under this Chapter.

2. The Department shall determine whether one or more escort vehicles must accompany an oversize or overweight special permitted vehicle by considering the roadway, load dimensions, public safety, time of transport, etc.

3. Two or more oversize or overweight special permitted vehicles traveling together must be accompanied by at least one escort vehicle per load.

Arizona Axle Regulations

Allowable weight:

Axle Group Maximum

Single                                    20,000 lb.

Tandem                                 34,000 lb.

Steering Axle                        20,000 lb.

Gross Vehicle Weight            80,000 lb.
five axles or more)    

Maximum Permit Weight Allowed

The Department shall require a special permit applicant to obtain an engineering analysis for transport of an overweight vehicle or vehicle and load combination exceeding 250,000 pounds.

W = 1.5 x 700 (L + 40),

where L is the distance between the centers of the front and rear axles of a group. The values in line “B” and in the remaining tables are computed by applying the percentages provided in the Table footnotes and are intended to increase the allowable weights based on wider axles and increased number of tires. Measured axle widths shall be rounded down to the nearest 3” increment when determining the appropriate table to use.

(Axle 1) limited to 28,000 lbs for single alone
(Axle 2 + 3); L = 4’; W = 46,200 lbs for tandem alone
(Axle 1) + (Axle 2 + 3); L = 14’; W = 56,700 lbs for the group
(Axle 4 + 5); L = 6’; W = 60,375 lbs (25% increase for 10’ wide - 8 tires)
(Axle 2 + 3 + 4); L = 16’; W = (2/3 x 58,800) + (1/3 x 73,500) = 63,700 lbs
(Axle 3 + 4 + 5); L = 18’; W = (1/3 x 60,900) + (2/3 x 76,125) = 71,050 lbs
(Axle 3 + 4); L = 12’; W = (1/2 x 54,600) + (1/2 x 68,250) = 61,425 lbs
(Axle 6 + 7 +8); L = 10’ 8”; W = 61,180 (15% increase for 10’ wide - 4 tires)

Arizona Trip and Fuel (IRP / IFTA) Permits

Instead of buying single-trip permits,  30-, 60- or 90-day registration permits are issued to a commercial vehicles.

The fee is based on the declared GVWR, the year of the vehicle and the length of the permit period requested.

The vehicle or vehicle combination must be currently registered in another state, jurisdiction or country.

The weight of the vehicle and the load may not exceed the declared GVWR on the registration or permit while operating in Arizona.

30-60-90 day permit may be verified against the registration, any time you enter an Arizona port of entry or by law enforcement.

A fuel permit is issued to a use diesel motor vehicle that is a road vehicle or combination vehicle with a GVWR greater than 26,000 pounds having more than two axles. Permit fees are:

30 days: $130

90 days: $390

180 days: $780

Permits can be purchased:

  1. Online
  2. National permit service
  3. Mail (using the address on the application form)
  4. In person at port and commercial permit locations

Arizona Overweight / Oversize Fines

weight violations are class 3 misdemeanor, subject to fines of:



1,001 – 1,250 lbs


1,251 – 1,500 lbs


1,501 – 2,000 lbs


2,001 – 2,500 lbs


2,501 – 3,000 lbs


3,001 – 3,500 lbs


3,501 – 4,000 lbs


4,001 – 4,500 lbs


4,501 – 4,750 lbs


4,751 – 5,000 lbs


5,001 and over

$1400 + $100 for each 1,000 lbs

Running Hours and Holiday Restrictions

Warning Lights:

During night time operations, all oversize vehicles must display red warning lights at four corners at the extremities of the load and on the extremity of extension beyond the four corners of the load.

Oversize Banners

All overwidth loads 9' or more wide must display "Oversize Load" signs. Size: 6' long, 1' high Letters: Black, 6" high, 1" brushstroke Background: Yellow

Flag Requirements

All oversize vehicles must display 18” square fluorescent orange or red flags at four corners at the extremities of the load and on the extremity of extensions beyond the four corners of the load (Ref Sec R17-6-302).

Flags, Lights and Banners

Daylight hours, (one-half hour before sunrise to one-half hour after sunset). Loads/vehicles not over 10′ wide or 14′ high or not over 10′ rear overhang are allowed continuous travel.

Loads not over 14′ wide, 16′ high, 120′ long and 250,000 pounds may travel on Interstate and specified state routes from 3:00 a.m. to 12:00 noon on weekends.

Over dimensional vehicles are not permitted during the following holidays: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day

Arizona Tire Regulations

A. A solid rubber tire must have rubber on its entire traction surface at least one inch thick above the edge of the flange of the entire periphery.

B. No block, stud, flange, cleat, spike or other protuberance that is made of any material other than rubber and that projects beyond the tread of the traction surface of the tire, except for farm machinery, tire chains when required, and studded tires Oct 1 to May 1.

At all points on major tread grooves, a tread-groove pattern depth of at least 4/32 of an inch on all tires on the steering axle, and 2/32 of an inch on all other tires.

Arizona Annual Permits

Permits are issued for a nonspecific and non-reducible vehicle or cargo load that does not exceed 250,000 pounds in gross weight, 14 feet in width, 16 feet in height or 120 feet in overall length and that has at least four axles. All envelope permittees must have an Arizona business address. All vehicles must be currently registered for 80,000 pounds.


  • Oversize annual: $750
  • Oversize/overweight annual: $1,500

Time, it takes to receive: 1 business day

Arizona Road Conditions

Work-zone safety is important not only to protect those who build and maintain our highways, but also to protect motorists. Preventable rear-end collisions are the most common type of work-zone crash. Simple things such as slowing down, obeying signs and flaggers, and preparing for lane restrictions go a long way to keep everyone safe.

Safety Tips: Driving Through Work Zones

Expect the unexpected. Normal speed limits may be reduced, traffic lanes may be restricted and people may be working on or near the road.

Slow down! Obey work zone speed limits.

Keep a safe distance. Maintain two car lengths between you and the car in front of you as well.

Pay attention.  Observe the posted signs.

Obey road crew flaggers. A flagger has the same authority as a regulatory sign. You can be cited for disobeying a flagger's directions.

Check road conditions before you travel. Schedule enough time to drive safely and check for traffic information by calling 511 or by logging on to

Arizona Manufactured Houses and Mobile homes

Class C Permit Procedures

The Class C Permit fee is

$30 for loads no greater than 18 feet in height and width and 80,000 pounds.

$90 for loads over 80,000 pounds.

$40 loads greater than 18 feet in height and width, but not over 80,000 pounds, 

$100 for loads greater than 18 feet in height and width and 80,000 pounds .

 Permits are valid for four working days.

Class C Permits are valid on state and interstate highways only. Transporters must check with local jurisdictions for authorization to travel on roadways that are not under ADOT jurisdiction.

An engineering analysis fee of $125 per 50-mile increments will be charged for loads that do not meet Arizona Administrative Code R17-6-411, Tables 3.01 through 3.09.

Engineering analysis fees must be received by the Class C Permits Office prior to engineering analysis being performed.

Loads over 250,000 lbs, over axle weight, or in excess of the posted bridge weights are analyzed by the ADOT Bridge Preservation Services.

Engineering analysis may take up to two weeks. Certified weights are required. Failure to provide the correct weights may require a second analysis to be performed by the ADOT Bridge Preservation Services and will incur a new analysis fee.

"Easy" C Mobile Home Permit Procedure available for unites that do not exceed:

  • 16 feet wide
  • 16 feet high
  • 120 feet in overall length (vehicle and load combination length)
  • 80,000 pounds combined gross vehicle weight rating
  • Within statutory axle group weight limits

Oversize / Overweight Regulations By State