Arizona Oversize & Overweight Permits for Heavy Haul
Arizona permit rules, legal limits and escort triggers, and how we book heavy haul carriers for moves in and through the state.
Quick answer
Do I need a permit to move an oversize load in Arizona?
Yes, once the load is wider than 8 ft 6 in, taller than 14 ft on the state highway system or heavier than 80,000 lbs. ADOT's Class A single trip permit is $15 for oversize and $75 for overweight, valid 96 hours, and loads up to 10 ft wide can travel around the clock. Bigger moves need a Class C permit with conditions set for each move.
Updated November 2026 by the Quickway Transports broker team (FMCSA MC# 1245224).
Heavy haul and oversize freight in Arizona
Arizona's heavy freight runs on I-10 between California, Phoenix and Tucson and on toward New Mexico, on I-40 across the north through Flagstaff, and on I-17 and I-19 linking Phoenix with Flagstaff and Nogales. Mining equipment for the copper districts, solar and data center construction around Phoenix, and cross-border cargo through Nogales keep oversize loads moving. We book carriers for moves inside Arizona or across it between California, Texas and the Mountain West.
Arizona runs on a size envelope. Loads up to 10 ft wide, 14 ft 6 in high, 120 ft long and 250,000 lbs may travel at any hour; past that they move in daylight, with a 3 AM start on many Interstates. Phoenix and Tucson freeways close to wider loads at rush hour, and many two-lane routes carry their own escort rules, so the route is checked before the quote.
What are the legal size and weight limits in Arizona?
Under the oversize load regulations in Arizona, a load above any of these limits needs a state oversize or overweight permit.
| Width | 8 ft 6 in |
|---|---|
| Height | 14 ft |
| Semitrailer length | 57 ft 6 in |
| Gross weight | 80,000 lbs |
| Single axle | 20,000 lbs |
| Tandem axle | 34,000 lbs |
Limits are set by A.R.S. 28-1093 to 28-1100. Width and height of 8 ft 6 in and 14 ft apply on the state highway system; roads not designated for them fall back to 8 ft and 13 ft 6 in.
Who issues Arizona oversize permits?
ADOT's Enforcement and Compliance Division issues permits through ePRO, which checks the route as part of the application, or in person at a port of entry or the Goodyear permit office; permits are not sold by phone. Class A covers loads up to 14 ft wide, 16 ft high, 120 ft long and 250,000 lbs, as a single trip valid 96 hours, a 30-day or an annual permit.
Anything past a Class A limit or a route restriction needs a Class C permit from ADOT's Class C Unit, which sets escorts and conditions for each move and averages about 48 hours to issue. ADOT permits cover the state highway system only, and cities, counties and tribal nations permit their own roads.
Permit system: ADOT ePRO (online permitting and routing on a Bentley Systems platform, with the Trip Evaluation route check)
What do Arizona oversize and overweight permits cost?
- request_quote Class A single trip: $15 oversize only, or $75 overweight (including any oversize) up to 250,000 lbs.
- request_quote Class A 30-day: $30 oversize, $75 overweight. Annual: $360 oversize, $600 overweight.
- request_quote Class C: the Class A fee plus a $15 review fee, or $25 when the load is over 18 ft wide or high, so $30 to $100 in all.
- request_quote Bridge analysis: $125 per 50-mile increment when ADOT prepares it, or $75 when an outside engineer prepares it and ADOT reviews it.
- request_quote Police escorts from Arizona DPS are billed at their cost, with a $4 fee on each transaction.
Worked example: a 300,000 lb Class C load over 120 miles
Over 250,000 lbs the load needs a Class C permit and a bridge analysis. The permit is $75 plus the $15 review fee, or $90, and ADOT's analysis of a 120-mile route counts as three 50-mile increments at $125, or $375, for $465 before escorts.
Arizona pilot car and escort requirements
- local_police Escorts are set route by route in ADOT's Table 4. Interstates need none up to 14 ft wide, while many two-lane routes call for front and rear escorts from 10, 11 or 12 ft.
- local_police From 14 to 16 ft wide: a single rear escort on most Interstates and Phoenix freeways, escorts at both ends on most two-lane routes, and two law enforcement escorts on segments such as I-15 and parts of US 60 and US 93.
- local_police Over 16 ft wide: a Class C permit, with escorts and any police escort set for the move.
- local_police 3 AM starts: a rear escort over 11 ft wide, front and rear over 14 ft, and a pole car over 15 ft high until half an hour before sunrise.
- local_police Overhang over 20 ft at either end: an escort at that end.
- local_police Escort operators must hold a certificate meeting the CVSA standard, or an equivalent from another state, renewed every 4 years.
What hours can oversize loads move in Arizona?
- calendar_today Inside 10 ft of width, 14 ft 6 in of height, 120 ft of length and 250,000 lbs: travel at any hour, any day.
- calendar_today Larger loads: daylight hours only, or from 3 AM on routes Table 4 marks for night transport, for loads up to 16 ft wide and high.
- calendar_today Phoenix and Tucson freeways, 7 to 9 AM and 4 to 6 PM on weekdays: no loads over 10 ft wide on most, and on Loop 101, Loop 202 and SR 24 a rear escort from 10 to 12 ft and nothing wider.
- calendar_today Class C loads on mountain corridors such as I-17 north of Carefree Highway and parts of US 60 and US 93 stop from Friday noon to 3 AM Monday.
- calendar_today Holidays: larger loads stop at noon the day before, or from Thursday or Friday noon when the holiday touches a weekend, and resume once it is over.
Seasonal weight limits in Arizona
Arizona has no frost law. Local authorities can lower weights on their roads for no more than 90 days a year when rain, snow or other weather would damage them, ADOT holds the same power on state highways, and several high-country routes, such as SR 67 to the Grand Canyon's North Rim, close for the season. Permitted loads may not move in snow, ice, flooding, high wind or visibility under 500 ft, which in the desert usually means blowing dust.
Arizona Oversize Load Questions
Permits, escorts and travel rules for oversize moves in Arizona.
How much is an Arizona oversize permit?
Can oversize loads travel at night in Arizona?
When is an Arizona load a Class C load?
What are the Phoenix and Tucson oversize curfews?
Do Arizona permits cover tribal and city roads?
Sources
We last checked the figures above against these official sources in October 2026. Before each move, the carrier's permit service confirms the rules in force that day.
- A.R.S. 28-1100 gross weight
- A.R.S. 28-1105 permit fees
- A.R.S. 28-1110 escort operator certification
- 17 A.A.C. 6 Oversize and Overweight Special Permits (Supp. 22-2, June 30, 2022; effective July 8, 2022)
- ADOT Oversize/Overweight Permits (Class A, fees)
- ADOT Class C Permits
- ADOT Escort Information and Guidelines
- ADOT Holiday Travel Restrictions
- ADOT Statewide Restriction Information
- Table 4 route restrictions, master list as of 07/10/2025 (ADOT escort page link)
- ADOT ePRO login and bulletin
- Tucson Police Department OS/OW load permits
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Heavy Haul Solutions for Oversized and Specialized Loads
Near Arizona: states and services
- Heavy Haul in New Mexico →Oversize moves in and through New Mexico: Albuquerque, Las Cruces, Santa Fe and the NM permit rules.
- Heavy Haul in California →Oversize moves in and through California: Los Angeles, San Francisco, Sacramento and the CA permit rules.
- Heavy Haul in Nevada →Oversize moves in and through Nevada: Las Vegas, Henderson, Reno and the NV permit rules.
- Heavy Haul in Colorado →Oversize moves in and through Colorado: Denver, Colorado Springs, Aurora and the CO permit rules.
- Heavy Equipment Transport →Which trailer, permits and preparation each kind of construction, farm, mining and industrial machine needs.
- Heavy Haul Trucking →Oversize and overweight loads on RGN, step-deck and flatbed trailers, with permits, pilot cars and route surveys arranged.