Maricopa County Air Quality Department Rule 322 caps heavy-duty diesel vehicle idling at five minutes within any sixty-minute period. The rule applies countywide on private and public property and includes specific exemptions for federal idle reductions, sleeper cabs, and emergency operations.
MCAQD Rule 322, adopted under ARS title 49 chapter 3 and Maricopa County Air Pollution Control Regulations, prohibits any heavy-duty diesel vehicle (gross vehicle weight rating over fourteen thousand pounds) from idling more than five minutes in any sixty-minute period anywhere in Maricopa County. The rule covers public roads, private property, loading docks, parking lots, and idling at residences. Exemptions cover sleeper-berth periods between 5 p.m. and 5 a.m. with bunk heater use, traffic congestion, mechanical service, ambulance and fire vehicles, refrigerated trailers running off auxiliary power, and engines participating in EPA SmartWay verified idle-reduction technology. The rule supports federal PM10 and ozone State Implementation Plan compliance.
Each violation of Rule 322 may bring civil penalties up to ten thousand dollars per day under ARS section 49-510 and Maricopa County administrative fines starting at five hundred dollars per occurrence, with repeat offenders subject to enhanced penalties.
Glendale, AZ
Glendale regulates amplified music under the general noise ordinance. Sound amplification permits available for events. ARS Β§13-2916 applies.
Glendale, AZ
Luke Air Force Base is located 7 miles west of downtown Glendale and is the largest fighter wing in the US Air Force, operating F-35A and F-16 aircraft. Mili...
Glendale, AZ
Smoke detector requirements in Glendale come from Arizona Revised Statutes Section 36-1637 (state law) and the International Residential Code as adopted unde...
Glendale, AZ
Glendale Fire adopts IFC Ch. 61. Residential: two 20-lb cylinders max outdoors; indoor storage prohibited. State Farm Stadium and Westgate events trigger spe...
Glendale, AZ
Glendale may protect native desert trees (palo verde, ironwood, saguaro). Street trees are city property. Proper pruning preserves shade in extreme heat.
Glendale, AZ
Glendale allows backyard composting; no permit required. City does not offer curbside organics. Yard-waste drop-off at Glendale's Transfer Station. Commercia...
Side-by-side rule comparisons with other cities in Maricopa County.
See how Glendale's vehicle idling restrictions rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.