Decibel Limits: San Bernardino vs Victorville
How do decibel limits rules compare between San Bernardino, CA and Victorville, CA?
San Bernardino and Victorville have similar restriction levels.
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 →Victorville, CA
San Bernardino County
Victorville sets zoning-based exterior decibel limits under VMC Chapter 13.01. Residential zones cap at about 65 dB(A) daytime and 55 dB(A) at night; commercial near 70 dB(A); industrial near 75 dB(A).
View full Victorville rules →Key Facts Comparison
| Fact | San Bernardino | Victorville |
|---|---|---|
| Residential Day | 55 dBA | About 65 dB(A) |
| Residential Night | 50 dBA | About 55 dB(A) |
| Commercial | About 65 dBA | About 70 dB(A) |
| Industrial | 70 to 75 dBA | About 75 dB(A) |
| Method | Type 2 meter at property line | A-weighted Type 2 meter |
Highlighted rows indicate differences between cities.
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.
Victorville FAQ
How are decibels measured in Victorville?
With an A-weighted Type 2 sound level meter at the receiving property line. Impulsive or tonal sounds can receive a 5 dB assessment penalty.
What if the freeway ambient already exceeds the limit?
The measured ambient becomes the enforceable standard, so new sources cannot raise the total noise level above that ambient.
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