Validity
4 days, available for purchase at most Ports of Entry.
Operating Time
Daylight hours (30 minutes before sunrise to 30 minutes after sunset).
Continuous travel allowed for vehicles/loads not over 10' wide or 14'6" high, or not over 10' rear overhang.
Travel from 3:00 am to 12:00 noon on weekends allowed for loads not over 16' wide, 16' high, 120' long, and 250,000 lbs on Interstate and specified state routes. Request required at time of permit order.
Escort required for loads over 11' wide and loads 15' high and over during weekend morning hours.
Restricted Travel
Travel prohibited on I-17, I-10, SR 60 within Phoenix, or I-10 or I-19 within Tucson between hours of 7:00 am – 9:00 am and 4:00 pm – 6:00 pm on weekdays.
Legal Dimensions
- Length: 57' trailer on Interstate; 65' overall for over 53' semi-trailer on Non-designated roads.
- Overhang: 3' front, 6' rear.
- Width: 8'6".
- Height: 14'.
- Weight: 80,000 lbs Gross; 20,000 lbs Single; 34,000 lbs Tandem; 42,000 lbs Tridem.
Routine Permit Limits
- Length: 120'.
- Width: 14'.
- Height: 16'.
- Weight: 28,000 lbs Single; 46,000 lbs Tandem; 51,450–53,974 lbs Tridem.
Escorts
Required for vehicles/loads over 120' length, over 20' front or rear overhang, over 14' width, and over 16' height.
Miscellaneous
Rules apply for bulldozer blades and arms, detachable parts, side mirrors, etc.
Signs, Flags & Lights
Requirements apply for vehicles/loads exceeding 9' in width. Overhangs must be flagged or lighted.
Overweight Permits
Scales expect permit weights to be very close to actual weights and dimensions. Permit can be purchased at scales or ensure accurate weights are ordered.
