Arizona Lifts Dyed-Diesel and Weight Limits for Ag Haulers

Governor Katie Hobbs issued an executive order on October 13 temporarily lifting on-highway restrictions on red-dyed diesel for agricultural operations and raising the weight limit to 90,800 pounds for vehicles hauling agricultural goods on non-interstate highways. The order directs the Arizona Department of Transportation to issue the needed overweight permits at no cost and tells state agencies to deprioritize enforcement against dyed-diesel use by vehicles engaged in growing and distributing agricultural products, through December 31, 2026.

The governor's office said the action responds to diesel price increases tied to disruptions in the global energy market from the conflict with Iran. It follows a federal executive order expanding red-dyed diesel availability through year-end, and Hobbs separately asked the federal government to let 90,800-pound vehicles travel freely on interstate highways, which her state order does not authorize.

Arizona joins other states taking similar executive action on dyed diesel. Farm and agricultural trade groups, including the Arizona Farm Bureau and Western Growers, praised the move as relief for growers moving produce from field to market.

What's next

• 2026-12-31: Deprioritized enforcement on dyed-diesel use and the overweight permit program expire.
• Watch for whether FMCSA or Congress acts on Hobbs' request to permit 90,800-pound loads on interstates.

All sources

• Governor Katie Hobbs Takes Emergency Action to Lower Fuel and Food Costs for Arizonans — Government site: azgovernor.gov, 2026-10-13
• Governor Katie Hobbs Takes Emergency Action to Lower Fuel and Food Costs for Arizonans — Government site: azgovernor.gov, 2026-10-14