Motor Carrier Services

Commercial Permits

Oversize/Overweight Permits

The Class A oversize/overweight permits are issued for vehicle and load combinations that are within specific size and weight limits. The load must be nonreducible. The Class A permit is issued for a single trip or 30 days. Class A permits are issued only for travel on state routes.

Permits for use of other than state routes are procured from the proper local authority. Please see our routing contacts below for more information. For the city of Phoenix, see the Phoenix Police Department's oversize/overweight load permits.

The following eligibility criteria must be met before issuing a Class A permit:

  • Is nonreducible
  • Has a specifically described load
  • Has a width and/or load is 14 feet or fewer
  • Has a height and/or load is 16 feet or fewer
  • Has a length and/or load is 120 feet or fewer
  • Has a combined weight of vehicle and/or vehicle combination is 250,000 pounds or fewer

If a load projects from the side of the vehicle and the load is 12 inches or more deep, the projection must not exceed three feet on either side.

If a load projects from the side of the vehicle and the load is less than 12 inches deep, the projection must not exceed two feet on either side.

This permit may not be used to routinely transport legal loads on over-width trailers.

A vehicle must be currently registered for 80,000 pounds.


Oversize single-trip: $15

Oversize 30-day: $30

Oversize/overweight single-trip: $75

Oversize/overweight 30-day: $75

Permits can be purchased by one of these methods:

For more information, please see our Permits FAQ.

Routing Contacts

Phoenix Police Department Routing/Clearance: 602.262.6099

Tucson Police Department Routing/Clearance: 520.791.4440

Maricopa County Routing/Clearance: 602.506.8609

Pima County Routing/Clearance: 520.740.6508

Mohave County Routing/Clearance: 520.757.0910

Coconino County Routing/Clearance: 928.526.2735

DPS Office for Requesting Escorts Across Glen Canyon Dam (150,000 lbs): 928.645.2122

Navajo Tribal Council: 928.729.7224

Road Restriction Report

State Milepost System Maps

Traveler Information (If 511 doesn't work, try calling 888.411.ROAD.)

From the ADOT Blog

Oversize load safely crosses bridge, makes it to destination on time

Aug. 22, 2011

Now that you know a little about the ADOT permitting process involved with moving oversize loads, take a look at the latest heavy haul to cross Arizona's highways. The video above shows just a portion of the journey this 285-ton load took beginning the first week of August. Full story ...

Moving oversize loads requires big effort

Aug. 9, 2011

When it comes to describing some hauls, the term "oversize load" is a major understatement. We're talking about the enormous "super-loads" driven through the state each day. Maybe you've seen them on the freeways … they're the trucks lugging gigantic transformers, generators, turbines, and even houseboats. Full story ...