Pima County, AZ Noise Ordinances: Vehicle Noise (2026)

010 keeps Tucson, Marana, Oro Valley, Sahuarita and South Tucson under their own codes). the next if the work creates excessive, unnecessary or offensive noise causing discomfort or annoyance to a reasonable, normally sensitive resident. Subsection B is a standing equipment requirement, in force at every hour: a vehicle's exhaust system must be free of defects that cause sound level magnification, must be equipped with a muffler, and cannot be modified in a way that amplifies or increases the sound level above what the factory-installed muffler produced when the vehicle was first sold.

Subsection C flatly bans operating a vehicle in a manner that squeals its tires on the roadway, with no noise-level or intent threshold to prove. 030(E) to include licensed and unlicensed vehicles, minibikes, go-carts, all-terrain vehicles and motorcycles, so off-road and recreational vehicles fall under the same rules as street cars. 080 cover agricultural equipment used in farming operations, authorized emergency vehicles responding to calls, county vehicles on official business, and vehicles engaged in defined emergency work; ordinary daytime repair work is not a listed exemption, it simply falls outside the prohibited conduct described in Subsections A through C.

090 classifies any violation of the chapter as a public nuisance and a class 1 misdemeanor, with each day a violation continues charged as a separate offense.