Rialto, CA Noise Ordinances: Quiet Hours (2026)
Quiet hours in Rialto, CA, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Controlled hours
- 7:00 a.m. to 8:00 p.m., all zones
- Amplified sound night rule
- 10:00 p.m. to 8:00 a.m., 25 feet
- Citywide decibel limits
- None in municipal code
- First-offense fine
- Up to $250
- Enforcement
- Police and code enforcement jointly
Summary
Rialto Municipal Code Section 9.50.050 makes it unlawful to operate power tools, loading equipment, compressors, heavy trucks, and similar noisy gear outside 7:00 a.m. to 8:00 p.m. in all zones. Amplified sound faces a tighter plainly-audible standard between 10:00 p.m. and 8:00 a.m.
Section 9.50.050 Controlled hours of operation. It is unlawful for any person to engage in the following activities other than between the hours of seven a.m. and eight p.m. in all zones: A. Load or unload any vehicle, or operate or permit the use of dollies, carts, forklifts, or other wheeled equipment that causes any impulsive sound, raucous or unnecessary noise within one thousand feet of a residence; B. Operate or permit the use of domestic power tools, or machinery or any other equipment or tool in any garage, workshop, house or any other structure; C. Operate or permit the use of privately operated street/parking lot sweepers or vacuums, except that emergency work and/or work necessitated by unusual conditions may be performed with the written consent of the city manager; D. Operate or permit the use of pile driver, steam or gasoline shovel, pneumatic hammer, steam or electric hoist or other similar devices; E. Operate or permit the use of electrically operated compressor, fan, and other similar devices; F. Operate or permit the use of any motor vehicle with a gross vehicle weight rating in excess of ten thousand pounds, or of any auxiliary equipment attached to such a vehicle, including but not limited to refrigerated truck compressors, for a period longer than fifteen minutes in any hour while the vehicle is stationary and on a public right-of-way or public space except when movement of the vehicle is restricted by other traffic. (Ord. 1417 Section 1 (part), 2008)
Full Breakdown
Chapter 9.50 (Noise Control, Ord. 1417, 2008) contains no numerical decibel standards; a 2022 CEQA noise study confirms the code relies on conduct rules instead. Section 9.50.050 restricts a long list of activities to 7:00 a.m.-8:00 p.m. in all zones, including domestic power tools, powered model vehicles and planes, leaf blowers, loading or unloading within 1,000 feet of a residence, pile drivers, compressors and fans, idling trucks over 10,000 pounds GVWR (15-minute limit), and audible vehicle repair. Section 9.50.030(A)(7) separately bans unreasonably loud, unnecessary, or unusual noise at any hour, judged by factors such as time of day and proximity to sleeping areas. The police department and code enforcement jointly administer the chapter (Section 9.50.080).
Violations & Fines
Violations are infractions and public nuisances (Sections 9.50.100-9.50.110). Fines escalate from $250 for a first conviction to $1,000 for a fourth within twelve months (Section 9.50.130), plus cost recovery for repeat police responses within 72 hours (Section 9.50.090).
Frequently Asked Questions
What are the quiet hours in Rialto?
Does Rialto have decibel limits for residential noise?
Sources & Official References
Other rules in Rialto
How Rialto compares: Cities with the Strictest Noise Ordinances·California rules heatmap·Compare Rialto to another location·View the California noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in San Bernardino County handle quiet hours.