Pinal County, AZ Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Cars (major street)
- 82 dBA at 50 feet
- Motorcycles (major street)
- 86 dBA at 50 feet
- Heavy trucks
- Up to 90 dBA at 50 feet
- Muffler required
- Yes, unmodified
- Repair curfew
- 10pm-7am in residential
Summary
Unincorporated Pinal County caps vehicle noise measured at 50 feet: 82-90 dBA for heavy trucks, 76-82 dBA for cars, and 82-86 dBA for motorcycles depending on the street. All vehicles must have a working muffler; loud vehicle repairs are banned 10pm-7am in residential areas.
No person shall operate either a motor vehicle or combination of vehicles at any time upon any street or paved surface... in such a manner as to exceed the following noise limit for the category of motor vehicle, based on a distance of fifty feet (50') or fifteen (15) meters from the center of the street.
Full Breakdown
Section 6.0(B), Table 2 sets sound limits measured 50 feet (15 m) from the street center or the vehicle. Vehicles 10,000+ lbs GVWR: 86 dBA on a local street, 90 dBA on a major/paved surface. Other motor vehicles: 76 dBA local, 82 dBA major. Motorcycles: 82 dBA local, 86 dBA major. Every vehicle must run a muffler free of defects and not modified to amplify sound. It is also unlawful to repair, rebuild or test a motor vehicle in a residential area between 10:00 p.m. and 7:00 a.m. in a manner creating excessive noise.
Violations & Fines
Class 1 misdemeanor (disorderly conduct) and/or civil fine up to $750/day; each day is a separate offense.
Frequently Asked Questions
Are modified exhausts and straight pipes legal in unincorporated Pinal County?
Can I work on a loud car in my driveway at night?
Sources & Official References
Other rules in Pinal County
Compare Pinal County to another location·View the Arizona noise ordinances overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.