Idle Reduction Laws and Incentives in Arizona

The list below contains summaries of all Arizona laws and incentives related to idle reduction.

State Incentives

Idle Reduction and Alternative Fuel Vehicle Weight Exemption

A heavy-duty vehicle that is equipped with qualified idle reduction technology may exceed the state’s gross, total axle, or bridge formula vehicle weight limits by up to 550 pounds (lbs.) to accommodate the weight of the idle reduction technology. To qualify for the exemption, the vehicle operator must also be able to prove the weight of the idle reduction technology and demonstrate that the technology is fully functional. Any vehicles fueled by natural gas, electricity, or hydrogen may exceed the limits by up to 2,000 lbs as described by Title 23 U.S. Code, section 127(s).

(Reference Arizona Revised Statutes 28-1100)

Laws and Regulations

School Bus Idle Reduction Pilot Program

As part of the Children’s Environmental Health Project, the Arizona Department of Environmental Quality (ADEQ) administers the School Bus Idling Pilot Program (Program) to reduce bus idling near schools. ADEQ has worked with school districts to develop a draft bus idling policy, which many of the school districts involved in the pilot program have implemented. The Program’s best practices include: having drivers turn off buses upon reaching a school or other location and not turn on the engine until the vehicle is ready to depart; parking buses at least 100 feet from a school air intake system; and posting appropriate signage advising drivers to limit idling near the school. For more information, refer to the ADEQ School Bus Idling Pilot Program website.

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