2021 Arizona state shipping laws, regulations, rules and limitations for oversize and overweight trucking on state highways and roads.


The great state of Arizona official seal.

Please share your expertise of Arizona state DOT trucking regulations with other visitors below.

As per the state of Arizona please read the following:

“The Arizona Department of Transportation in cooperation with state representatives, industry, the Department of Public Safety  and local law enforcement personnel work in collaboration to update and amend oversize and overweight special permit rules containing special permit requirements, restrictions and allowances for transporting oversize and overweight vehicles and loads on highways under the jurisdiction of the Department. This is a council established in statute and makes up the Over-dimensional Permit Council.

These rules detail the eligibility, application and use requirements for a variety of permits the Department currently issues to commercial motor carriers for transporting vehicles or vehicle and load combinations exceeding the maximum size or weight limitations provided by statute.

Each special permit provided by the Department under these rules is specifically authorized by statute.  The oversize and overweight special permits issued under these rules are that each permittee issued a particular class of permit is subject to the same activities, practices, requirements and restrictions applicable to that permit type. The statutes additionally provide authority for issuance, conditions, restrictions, approvals and fees.”

Arizona oversize permits, heavy-haul trucking companies and pilot cars.

Locate oversize, heavy-haul trucking companies and pilot cars:

Arizona pilot cars and truck escorts for hire.
Arizona oversize and heavy-haul trucking companies for hire.
Arizona oversize and heavy-haul trucking permits.

Do I need a trucking permit? Legal load limits.

Arizona maximum load limits until a trucking permit is required:

Length: Anything over 65 feet in length overall requires a permit on non-designated highways.
Overhang: 3 feet in the front and 6 feet off of the rear of trailer maximum (make sure your route is approved for overhang as there are location variations).
Weight: 80,000 pounds overall (GVW), 12,000 pounds on steer axle.
Width: 8 feet and 6 inches wide maximum.
Height: 14 feet maximum on interstates and 13 feet and 6 inches in height on secondary roads.

Routine heavy haul and oversize trucking permits in Arizona.

These maximum dimensions/weights are considered routine oversize or heavy-haul trucking permits in Arizona:

Length: 120 feet maximum or proceed to super load section.
Weight:  250,000 pounds maximum (Class C if over or see superloads). Single axle is 28,000 pounds maximum. All tandem, tridum, trunnion and quadem axle configurations depend on axle spacings and tire sizes. Gross weight maximums: 5 axles is 104,000 pounds, 6 axles is 108,000 pounds, 7 axles is 117,000 pounds. The permissible maximum weights depend on the number of tires combined with the overall distance between each of the axles. Spacings on axles are a little bit tricky in this state. The Arizona DOT permits office will consider a number or factors but it’s primarily about the bridges which could require a route survey if extreme weights are involved. If weights are excessive and trailer capabilities are even close to short of maxing out, forget it! Pavement, structural and stress testing results will govern your overall permissible capabilities.
Width: 14 feet wide maximum or file under super load.
Height: 16 tall maximum or file under super load.
Overhang:  3 feet of front or 6 feet off of the rear or any configuration that is in excess of 75 feet. They could require you to use a stretch trailer before allowing you to proceed under super load provisions.
Notes: These above routinely permitted shipments will need to be filed as class “A” permits. Class A permits are anything under 120 feet in length, 14 feet in width, 16 feet in height or under 250,000 pounds overall. Maximum speed is set at 55 mph for all oversize/overweight shipments.

Super load information for Arizona.

Arizona state DOT will classify your shipment as a super load if you are in excess of any of the following:

If a shipment exceeds any of the following it is classified as a superload and will require a class C permit. Class C permits are “super load permits”. If any shipment is in excess of 120 feet in length or 14 feet in width or 16 feet in height or 250,000 pounds in weight it is classified as a super load.
Notes: For mobile home shipments and more class C permit information expand the file just below.

Arizona class C permits.

Lights, safety flags and warning signs for heavy haul and oversize loads.

Required safety markings, safety flags, warning lights for heavy haul and oversize loads:

If shipment is over 102″ in width it must be flagged on the 4 outtermost corners of the entire combined shipment. Flags must be red in color and be not less than 12″ in either direction. Proper “OVERSIZE LOAD” or “WIDELOAD” banner/sign bust be displayed on both the upper most front of overall shipment (front of truck) no less than 5′ from the pavement line. Banner/sign must be no less than 6′ in length and 12′ in height with reasonable and size letting thickness and height. If you are seeking or awarded night movement reflective or illuminated banners/signs are required.

When pilot cars or escort vehicles are required.

Heavy-haul or oversize loads may be required to be accompanies by a escort vehicle or pilot car if:

Length: On 2 Lanes:Over 120’ requires 1 pilot car in front of truck and 1 rear of truck.
Width: On 2 lanes over 14’ requires 1 pilot car or escort vehicle in front of truck and 1 the rear of truck. On Interstates over 15’ wide you are required to have 1 pilot car in front of truck.
Height: Over 17 feet requires 1 pilot car equipped with a height pole in front of truck.
On Interstates: Over 120’ requires 1 pilot car in front of truck.

Pilot cars/escort vehicle certifications and requirements.

Pilot car or escort vehicle mandatory operator certifications and vehicle requirements:

For a vehicle to qualify; all pilot car/escort vehicles must have a manufacturers gross weight rating not to exceed over over 20,000 pounds. All pilot cars/escort vehicles must display a bumper or roof mounted “OVERSIZE LOAD” sign visible from both the front and rear of the vehicle.  Sign must be at least 6 feet long and 12 inches in height, yellow in color with black letters no less than 5 inches tall and 1 inch in width. Vehicle must have 4 safety flags displayed in red or orange in color and be a minimum of 12 inches in length quare and/or height mounted at a 40 to 70 degree angle on all 4 corners of the vehicle.   Vehicle must be equipped with a  CB radio or 2-way communication device, 8 ignitable road flares and have a first-aid kit.

Legal travel times for oversize and heavy haul loads in Arizona.

Travel times and restrictions for heavy-haul and oversize loads:

The one half hour before sunrise to one half hour after sunset rule applies.  Travel on weekends and holidays is permitted. Night time travel applies to any shipment that does not exceed 120 feet in length or 16 feet wide or 16 feet tall or less than 250,000 pounds. If your are empty but over weight you’ll be allowed to travel continuously more than likely. If overweight only you will probably be allowed continuous travel. Under 10 feet of overhang, 10 feet in width or 14 feet in height will more than likely be granted continuous travel. Some loads will NOT be granted travel on weekends. Always refer to the documentation on your permit to verify travel times.

Arizona DOT office and permit contact information:

Arizona DOT contact information and notes:

Arizona Motor Vehicle Division (ADOT)
1225 N 25th Avenue
Phoenix, AZ 85009
Telephone: 602-771-2960
Office hours: 8 AM until 5PM Monday – Friday.
Arizona observes Mountain Time.
 Arizona DOT permits.
Notes: For class C permits: 602-712-8176 or 8280. All laws, regulations, rules and limitations are now set fourth in: Arizona transportation-permit laws.

Arizona cities serviced.

Additional info.

The information contained in these pages is research information primarily for use by oversize and overweight trucking company drivers, dispatchers and pilot car companies. While every effort is put into maintaining the accuracy of this information you must absolutely verify this information with the Arizona State DOT Permits office before commencing movement.
Arizona state flag. Arizona DOT oversize and overweight trucking regulations.

Arizona state flag.

  1. Can I replace flags with lights on an oversized load

    • Replace – no. There is a difference between night and day running/requirements. Call the DOT in the states you intend on travelling for clarification. “Replacement” however will probably not be sanctioned if I were to guess.

  2. I regularly transport my rowing scull on the roof of my Jeep Grand Cherokee (15’5″ long) sitting in a custom-made rack. I drive between Tubac and either Pena Blanca or Patagonia Lakes.

    The boat is 26′ long and less than 1′ wide, so I overhang front and back – and I do display a red flag in the rear.

    Am trying to figure out if I need a transport permit?

    Any advice appreciated.

  3. Before a load hits the road, drivers need permits for each state traveled with exact travel routes specified. All of these factors—especially the drive time restrictions—present unique challenges for shippers trying to maintain schedules. The size of the item being shipped dictates the necessity of flags or lights on the tractor or trailer. Typically, red flags and amber lights are required for oversized loads to ensure visibility to other traffic. Travel escorts accompanying an oversize shipment are often also required to have flags and or lights.

    • Very true. You can check all of the oversize trucking regulations in North America by clicking on “regulations” above.

  4. Are oversized loads able to roll at 3am on weekdays without an escort at 11.5 wide?

    • Under 12′ is a standard for not needing an escort. Certain routes may have restrictions. Be aware of holiday travel times as well just in case your date falls on a restricted one.

  5. Hello, I see the rules for overhang on the front and the rear of a trailer, but what about the sides of a single axle trailer?

  6. I have a flatbed truck with a rear hitch towing a 32′ fifth wheel trailer on I 10 from Nogales to Tucson. the load is in reducible and not over height or width it overhangs the back of the trailer by 7′ I have oversize banners front and rear and am under 54′ overall length.
    do I need a permit to travel during the day?

    • We’re so sorry about the delay Deb and certain you have found your answer. Your post got lost in spam posts. We deleted them all and once the dust cleared there you were. Sorry about that. The answer should be on this page. What is the amount of legal overhang in the state of AZ? 3′ in the front and 6′ in the rear so if you are 7′ then yep, you need a permit.

  7. Why is it oversize at 11 foot have to travel at 55 mph. Seems to me that makes us more if a danger than if we run with the main flow of traffic. To me that is impeding traffic

    • Mendy the states set these laws based on years of research. They may not be perfect but that’s what we have to work with. 11′ wide however is considerably wide in relation to the road. Some shipments may be more stable than others. For instance a boat trailer vs a semi trailer. If a wheel bearing goes out on a cheap boat trailer which happens a lot it would be better for all if it happened at a lower speed. Just my two cents but hey, don’t shoot the messenger 🙂

  8. Shelly, thank you so much for correcting us on the main phone number for the Arizona permits division of the DOT office. We have updated the changes!

    Visitors please take note! We can all help each other…

  9. The numbers above are no longer in service. The new number is 602-712-8851.

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