Arizona permits

Arizona Oversize Permit Rules

Legal limits, Class A and Class C permits, escorts, night and weekend moves, Phoenix and Tucson curfews and holiday rules for oversize and overweight loads in Arizona, each checked against the Arizona Department of Transportation.

Last checked: Oct 2, 2026

This page is general information only, not legal advice and not a permit. Rules change often and each state's permit and official rules are the final word. Always confirm limits, escorts, routes and travel times with the state permit office before moving a load. Reliable Transport LLC is not responsible for decisions made using this information.

Legal size
8'6"W, 14'H, 80,000 lbs
Class A permit
Up to 14'W, 16'H, 120'L
Night moves
Up to 16'W from 3 a.m. on listed routes

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ADOT permits

How Arizona sizes up a heavy load

The Arizona Department of Transportation (ADOT) Motor Vehicle Division issues Class A and Class C oversize and overweight permits for nonreducible loads on state routes, through its ePRO online system. These are the numbers we plan every Arizona load with. Run your exact load and route through our permit tool to see every state on the trip.

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Enter your width, height, length and weight in our permit tool to see the Arizona rules and every other state on your route, each with its official source.

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Arizona limits

Arizona legal limits and permit thresholds

Over any legal limit, the load needs an ADOT permit for a nonreducible load on state routes. City and county roads need their own permit.

Arizona legal size, weight and permits

Official sources linked
RuleLimit
Legal width8'6"W (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Legal height14'H (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Legal weight80,000 lbs gross (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Class A permitUp to 14'W, 16'H, 120'L and 250,000 lbs, for a single trip, 30 days or a year; single trip $15, or $75 oversize and overweight (ADOT oversize and overweight permits, Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Class C permitOver any Class A limit; good for four working days (ADOT Class C permits)
Local roadsPermits for roads other than state routes come from the city or county; Phoenix issues its own (ADOT oversize and overweight permits, ADOT Class C permits)

Escorts

Arizona escort requirements

ADOT writes the escorts on each permit. These escort rules are set in the Arizona rules.

Arizona escorts by load size

Official sources linked
LoadEscorts
Over 11'W up to 14'W at night1 rear escort from 3 a.m. to half an hour before sunrise (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Over 15'H at night1 front escort with a height pole (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Overhang over 20'1 escort when the front or rear overhang is over 20' (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))
Police escortsClass C permits may call for Arizona Department of Public Safety escorts, scheduled after the permit is issued (ADOT Class C permits, Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

ADOT sets the full escort list on each permit by the load, the route and the time of travel.

Height and routes

Route surveys, utilities and continuous travel

What Arizona asks of tall, wide and heavy loads.

  1. Route survey

    ADOT reviews each Class C application on its own and may require a route survey and a contingency plan, based on bridges, load size and weight, pavement, road width, grade and condition, and traffic. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2), ADOT Class C permits)

  2. Overhead utilities

    A Class C applicant contacts the utility and cable companies on the route to confirm overhead line clearance, and the utility is told before a load over 16'H passes under its lines. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

  3. Continuous travel

    Loads up to 10'W, 14'6"H and 10' front and rear overhang may travel day and night. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

  4. Height pole

    Over 15'H at night, a front escort with a height pole. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

  5. Engineering analysis

    Loads outside the weight tables in the Arizona Administrative Code need an ADOT engineering analysis, at $125 per 50 miles. (ADOT Class C permits, Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

Travel times

Travel hours, nights, weekends and holidays

When a permitted load may move in Arizona.

  1. Hours

    Over the continuous travel limits, half an hour before sunrise to half an hour after sunset, unless the permit sets other hours. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

  2. Nights and weekends

    Loads up to 16'W, 16'H, 120'L and 250,000 lbs may run from 3 a.m. on nights and weekends on the routes ADOT lists, when the permit says so. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2), ADOT Class C permits)

  3. Metro curfews

    Monday through Friday, 7 to 9 a.m. and 4 to 6 p.m., oversize loads face limits on listed Phoenix and Tucson routes. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

  4. Holidays

    Loads over 10'W, 14'6"H, 10' overhang, 120'L or 250,000 lbs stop on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas, from noon the day before; a Friday or Saturday holiday stops loads from noon Thursday. (Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2), ADOT holiday travel restrictions)

Superloads

Arizona Class C special permit

Arizona has no separate superload class. A load over any Class A limit, 14'W, 16'H, 120'L or 250,000 lbs, needs a Class C special permit, good for four working days. ADOT may require a route survey, loads outside the weight tables need an engineering analysis, and the permit may call for police escorts. (ADOT Class C permits, ADOT oversize and overweight permits, Arizona Administrative Code Title 17 Chapter 6 (Supp. 22 2))

See how we plan the biggest loads on our Superload Transport page.

Sources

Official Arizona sources

Every rule on this page is taken from the ADOT pages and rule text below and confirmed by a second source. Rules we could not confirm twice are left off this page. Rules change, and the permit itself always decides. Last checked: Oct 2, 2026.

Questions

Arizona permit questions

What are the legal size and weight limits in Arizona?

8'6"W, 14'H and 80,000 lbs. Anything bigger or heavier needs an ADOT permit.

What is a Class A permit in Arizona?

A permit for loads up to 14'W, 16'H, 120'L and 250,000 lbs, for a single trip, 30 days or a year.

What is a Class C permit in Arizona?

A special permit for loads over any Class A limit, good for four working days.

Can oversize loads move at night in Arizona?

Loads up to 10'W and 14'6"H may run continuously. Loads up to 16'W and 16'H may run from 3 a.m. on nights and weekends on listed routes, with escorts.

When does Arizona require escorts?

ADOT sets escorts on each permit. At night, over 11'W up to 14'W needs a rear escort, and over 15'H a front escort with a height pole.

When does an Arizona load need a route survey?

ADOT may require a route survey for any Class C load, over 14'W, 16'H, 120'L or 250,000 lbs, after it reviews the bridges, road and traffic on the route.

What holidays stop oversize loads in Arizona?

New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas, from noon the day before.

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Hauling through other states? Use our permit map and route planner

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Reliable Transport LLC | Reliable Heavy Haul

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We haul oversize and overweight loads across the USA and Canada from our home base at 7660 W Third St, Dayton, OH 45417. Send your load details and we will plan the Arizona permit, route and escorts.

This page is general information only, not legal advice and not a permit. Rules change often and each state's permit and official rules are the final word. Always confirm limits, escorts, routes and travel times with the state permit office before moving a load. Reliable Transport LLC is not responsible for decisions made using this information.