Permits are valid for 4 days. Drivers have the option of purchasing permits at most Ports of Entry.

Travel is allowed during daylight hours, (one-half hour before sunrise to one-half hour after sunset). Loads or vehicles not over 10′ wide or 14’6” high or not over 10′ rear overhang are allowed continuous travel. Loads not over 16′ wide, 16′ high,120′ long and 250,000 pounds may travel on Interstate and specified state routes at night, and from 3:00 a.m. to 12:00 noon on weekends (except on holiday weekends and in curfew areas), this must be requested when permit is ordered and must be stated on the permit.
Note – all loads over 11′ wide will be required to have one escort to travel from 3 a.m. to noon on weekends, and loads 15′ high and over will need escort with height pole.

No over dimensional or over weight loads allowed on I-17, I-10 and SR 60 within city limits of the Phoenix area; or I-10 or I-19 within city limits of the Tucson area between the hours of 7:00 – 9:00 a.m. and 4:00 – 6:00 p.m. Monday – Friday. Local “Courtesy Permit” route approval is required for over dimensional travel within Phoenix and Tucson. No travel permitted on major holidays.

Width: 8’6″
Height: 14′
Length: 57′ 6″ semi-trailer on Interstate; 65′ overall combination if more than 53′ semi-trailer on other highways.
Overhang: 3′ front, 6′ rear.
Weight:  80,000 Gross; Steering – 20,000; Single – 20,000; Tandem – 34,000; Tridem – 42,000

Width: 14′
Height: 16′
Length: 120′
Weight: 250,000 Gross; Tandem – 46,000*; Tridem – 51,450–53,974*; Tridem – 28,000* (Tandem and Tridem weights may vary depending on axle spacing and axle width.

Width: over 14′ – 1 or more escorts. Some restricted routes require 2 escorts over 12′ wide and a few for over 10′ wide.
Height: over 16′ – 1 or more escorts.
Length: over 120′ – 1 or more escorts.
Overhang: Front or Rear over 20′ – 1 escort.

Bulldozer blades and arms over 14′ wide (measured at right angles to the trailer axis) need to be detached and hauled as to not create a safety hazard. Dozer blades shorter than 14′ wide may be hauled without being detached provided the dozer is firmly supported. If buckets, blades, counterweights, etc., are easy to remove, they must be removed, but can be hauled with the load.
Blade can be detached and hauled with the dozer on same trailer if the load would be overweight with or without the blade, but it must be stated on the permit. On wide loads, side mirrors must extend far enough to avoid view being blocked by the load.

All over width vehicles or loads exceeding 8′ 11″ need to display “Oversize Load” signs. All over width loads and vehicles must be flagged with red or fluorescent orange flags 18″ square or larger on all 4 corners and at the widest points of the load. Any front or rear overhang must be flagged or lighted. Up to 10′ overhang may travel at night, but must be lit and flagged. There are no sign or flag requirements for over height or over weight only loads.