Arizona Oversize & Overweight Permits

When Arizona needs a permit

Arizona permits over 8'6" wide, 14' high, or 80,000 lb, issued through ADOT's ePRO system (A.R.S. 28-1103). A pilot car starts at 14' wide, and gross over 250,000 lb becomes a superload with engineering analysis at about $125 per 50 miles. Travel is daylight only, though mid-size loads get night and weekend windows. Phoenix and Tucson freeways shut over-dimension loads out during 7-9 a.m. and 4-6 p.m. rush.

Thresholds, escorts, and curfews

• Legal max before a permit: Permit needed over 8'6" wide, 14' high, 80,000 lb (82,000 for natural-gas, electric, or idle-reduction rigs), or past legal length. Under all of those, no permit.
• Escort / pilot car: One or more pilot cars over 14' wide; some restricted routes require two over 12' and a few over 10'. A pole car over 16' high. One escort over 120' long. Police escort at the largest sizes. Confirm on the permit.
• Superload: Gross over 250,000 lb is a superload requiring engineering analysis, with an analysis fee of about $125 per 50 miles for loads outside the R17-6-411 tables. Loads over 18' wide or high, or 120' long, move up to the Class C special-permit process.
• Travel curfew: Daylight only, a half hour either side of the sun. Loads up to 16' wide, 16' high, 120' long, 250,000 lb may run nights on the Interstate and listed routes, plus 3 a.m. to noon on weekends (not holiday weekends or curfew zones). Phoenix (I-17, I-10, SR 60) and Tucson (I-10, I-19) ban over-dimension loads 7-9 a.m. and 4-6 p.m. weekdays.
• Permit fee: Single-trip oversize about $15; a Class C special permit runs $30 to $100 by size and weight. Annual oversize about $360, annual oversize/overweight about $600. Superload engineering adds roughly $125 per 50 miles.

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