Quiet hours in Fontana, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Fontana enforces residential quiet hours under Fontana Municipal Code Chapter 18 (Nuisances) and the Zoning and Development Code noise standards in Table 30-469. Nighttime hours of roughly 10 PM to 7 AM are treated as protected quiet time, and noise that disturbs neighbors triggers Code Enforcement action.
Fontana does not have a dedicated decibel-driven noise ordinance in one chapter. Instead, Municipal Code Chapter 18 treats excessive noise as a nuisance, while Zoning Code Chapter 30 (Table 30-469) sets exterior noise standards for land-use categories across the city. In residential zones, sound levels permitted during daytime hours (7 AM to 10 PM) are higher than at night (10 PM to 7 AM), reflecting standard California practice. Because Fontana sits at the I-10 and I-15 crossroads and borders active warehouse corridors, the city relies on the nuisance framework to pull in complaints about truck idling, yard equipment, parties, and backyard speakers that violate the nighttime limits. Repeat offenders can face administrative citations, and property owners are held responsible for controlling noise generated on their premises. Report violations to Fontana Code Enforcement at (909) 350-7626 or through the online portal.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle quiet hours.
See how Fontana's quiet hours rules stack up against other locations.
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