Decibel Limits: Fontana vs San Bernardino
How do decibel limits rules compare between Fontana, CA and San Bernardino, CA?
Fontana and San Bernardino have similar restriction levels.
Fontana, CA
San Bernardino County
Fontana uses the Zoning and Development Code (Table 30-469) to cap exterior sound levels by receiving land use. Typical residential limits are 65 dBA during daytime and 55 dBA at night, with industrial zones allowed higher ceilings during the day.
View full Fontana rules →San Bernardino, CA
San Bernardino County
San Bernardino sets exterior limits of about 55 dBA day and 50 dBA night in residential zones, 65 dBA in commercial, and 70 to 75 dBA in industrial zones under Development Code 19.20.030(15).
View full San Bernardino rules →Key Facts Comparison
| Fact | Fontana | San Bernardino |
|---|---|---|
| Authority | Zoning Table 30-469 plus Noise Element | - |
| Residential Day | About 65 dBA typical cap | 55 dBA |
| Residential Night | About 55 dBA typical cap | 50 dBA |
| Interior Target | 45 dBA CNEL for new homes | - |
| Measurement | Calibrated SLM by Code Enforcement | - |
| Commercial | - | About 65 dBA |
| Industrial | - | 70 to 75 dBA |
| Method | - | Type 2 meter at property line |
Highlighted rows indicate differences between cities.
Fontana FAQ
Do I need a sound meter to file a complaint?
No. Start with a written complaint; Code Enforcement or Police will bring a meter if the issue is ongoing.
Are impulse noises like bangs treated differently?
Yes, the Noise Element treats single-event peak limits separately from average limits, letting enforcement cite short, sharp impacts.
San Bernardino FAQ
How is the limit measured?
Code Enforcement uses a calibrated Type 2 sound-level meter at the property line, following CEQA noise protocols.
What if background noise already exceeds the limit?
An ambient-adjusted baseline may apply so enforcement focuses on the added noise from the specific source.
Compare other topics
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