How to read an Arizona oversize permit

ADOT issues oversize/overweight permits online through ePRO: Class A for loads up to 14 feet wide, 16 feet high, 120 feet long and 250,000 pounds, and Class C for anything bigger. Class A permits cover state routes only, so every city or county street on your trip needs its own local permit.

How to read the route

ADOT has not published a sample of an issued permit, so we can't show where the route prints. In ePRO you pick the trip's 'Origin' and 'Destination' from drop-down lists, and some permits also need the trip drawn on an interactive map. ADOT's paper application asks for the route as 'state and federal highways only', with 'Traveling From' and 'Traveling To' boxes. It says 30-day and annual permits don't need a route. Expect state routes and Interstates, like I-10 or SR 51; local streets aren't on an ADOT permit.

Road names on Arizona permits

On the permit	Means
I-10	Interstate 10
US 60	U.S. Route 60
SR 51	State Route 51
SR 202 Loop	Loop 202, State Route 202 around metro Phoenix
MP 133.98	Milepost 133.98. ADOT's rules write 'MP = Milepost' and mark curfew zones by milepost.

Where the route starts and ends

In ePRO you pick an Origin and a Destination from drop-down lists. The paper application has 'Traveling From' and 'Traveling To' boxes. ADOT has not published how these print on the permit.

Conditions to watch for

Travel time

Loads over 10 feet wide, 14'6" high, 10 feet of front or rear overhang, 120 feet long or 250,000 pounds move from half an hour before sunrise to half an hour after sunset. Loads within all of those limits can travel around the clock, subject to route restrictions. Source

“Operate no earlier than one-half hour before sunrise and no later than one-half hour after sunset”

Nights and weekends

Loads over 10 up to 16 feet wide, or over 14'6" up to 16 feet high, may run nights and weekends from 3:00 a.m. on routes ADOT authorizes for it, but not on holidays. Between 3:00 a.m. and half an hour before sunrise you need escorts: a rear escort over 11 up to 14 feet wide, front and rear over 14 up to 16 feet, and a front escort with a height pole over 15 feet high. Source

“Beginning at 3:00 a.m. until no later than one-half hour after sunset”

Holidays

Loads over the travel-time limits above don't move on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving or Christmas. For a Friday or Saturday holiday you stop at noon Thursday; for a Sunday or Monday holiday you stop at noon Friday. For a Tuesday, Wednesday or Thursday holiday you stop at noon the day before. Source

“When a holiday occurs on a Monday, transport shall stop at 12 noon on the preceding Friday”

Phoenix, Tucson and Yuma rush hours

Loads over 10 feet wide face weekday curfews from 7 to 9 a.m. and 4 to 6 p.m. on listed metro routes. Some segments are closed to loads over 10 up to 16 feet wide, such as I-10 from MP 133.98 to MP 161.35 in Phoenix. On others, over 10 up to 12 feet needs a rear escort and over 12 feet can't move. Source

“Monday through Friday During Curfew Hours 7:00 a.m. to 9:00 a.m.; and 4:00 p.m. to 6:00 p.m.”

Escorts

ADOT decides on each permit how many escorts you need, based on the road, the load's size, frequent stops, public safety and time of travel. Escort cars carry an 'OVERSIZE LOAD' sign with a flag on each side, and stay in two-way radio contact with the truck. Source

“shall use all escort vehicles required by the Department as a condition of envelope or special permit issuance”

Signs and flags

Loads 9 feet or wider must show an 'OVERSIZE LOAD' sign on the front or roof of the truck and on the rear. Warning flags on wide or long loads are red or fluorescent orange, at least 18 inches square. Source

“displays an "OVERSIZE LOAD" sign if the vehicle or load is nine feet or more in width”

Easy to miss

A Class A permit only covers state routes. Any city or county road on your trip needs a separate local permit; ADOT's page points Phoenix moves to the city's own permit.
Before every trip, ADOT's rules require you to check current route closures and restrictions, through ePRO, az511.gov or 511. Some routes on ADOT's Table 4 are closed to Class C loads from noon Friday to 3:00 a.m. Monday.
Times in ADOT's rules are Arizona time (Mountain Standard Time, no daylight saving). The exception is state routes crossing a tribal nation that observes daylight saving time.

Questions

What are the oversize load travel hours in Arizona?

Loads over 10 feet wide, 14'6" high, 120 feet long, 10 feet of overhang or 250,000 pounds run from half an hour before sunrise to half an hour after sunset. Loads within all of those limits may travel around the clock unless a route restriction says otherwise.

Can I move an oversize load on a weekend in Arizona?

Yes, for loads over 10 up to 16 feet wide or over 14'6" up to 16 feet high (and up to 120 feet long and 250,000 pounds). They may run on non-holiday nights and weekends from 3:00 a.m., only on routes ADOT authorizes for night and weekend travel, with the required escorts.

Which holidays stop oversize loads in Arizona?

New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas, for loads over 10 feet wide, 14'6" high, 120 feet long, 10 feet of overhang or 250,000 pounds. The stop starts at noon the day before, or earlier when the holiday is next to a weekend.

Sources

Your permit is the legal document; follow everything it says. Rules change; check ADOT's site before you move.Last checked October 2026.