The Arizona Revised Statutes have been updated to include the revised sections from the 55th Legislature, 2nd Regular Session. Please note that the next update of this compilation will not take place until after the conclusion of the 56th Legislature, 1st Regular Session, which convenes in January 2023.
This online version of the Arizona Revised Statutes is primarily maintained for legislative drafting purposes and reflects the version of law that is effective on January 1st of the year following the most recent legislative session. The official version of the Arizona Revised Statutes is published by Thomson Reuters.
28-955 - Mufflers; noise and air pollution prevention; emissions control devices; civil penalty; exception
28-955. Mufflers; noise and air pollution prevention; emissions control devices; civil penalty; exception
A. A motor vehicle shall be equipped at all times with a muffler that is in good working order and that is in constant operation to prevent excessive or unusual noise.
B. A person shall not use a muffler cutout, bypass or similar device on a motor vehicle on a highway.
C. The engine and power mechanism of a motor vehicle shall be equipped and adjusted to prevent the escape of excessive fumes or smoke.
D. Beginning with motor vehicles and motor vehicle engines of the 1968 model year, motor vehicles and motor vehicle engines shall be equipped with emissions control devices that meet the standards established by the director of environmental quality.
E. A person who violates this section is subject to a civil penalty of at least one hundred dollars.
F. This section does not apply to an electrically powered motor vehicle.