Quiet Hours: Norwalk vs Pomona
How do quiet hours rules compare between Norwalk, CA and Pomona, CA?
Norwalk and Pomona have similar restriction levels.
Norwalk, CA
Los Angeles County
Norwalk Article III treats any noise reading exceeding the ambient noise level at a residential property line by more than 5 dBA as prima facie evidence of violation. 'Daytime' is M-F 7 AM-8 PM, Sat 8 AM-8 PM, Sun/holidays 9 AM-8 PM.
View full Norwalk rules →Pomona, CA
Los Angeles County
Pomona enforces quiet hours from 10 PM to 7 AM under Chapter 18, Article VII. During quiet hours, stricter noise limits of 50 dBA apply in residential zones, and sound must not be audible beyond 50 feet.
View full Pomona rules →Key Facts Comparison
| Fact | Norwalk | Pomona |
|---|---|---|
| Standard | Ambient + 5 dBA | - |
| M-F Daytime | 7 AM - 8 PM | - |
| Saturday | 8 AM - 8 PM | - |
| Sun/Holiday | 9 AM - 8 PM | - |
| Code Section | - | §§18-311, 18-312 |
| Quiet Hours | - | 10 PM–7 AM |
| Residential Limit | - | 50 dBA nighttime |
| Audibility Rule | - | Not audible beyond 50 ft at night |
| Enforcement | - | Code Compliance: (909) 620-2374 |
Highlighted rows indicate differences between cities.
Norwalk FAQ
How does Norwalk measure a noise violation?
Article III of the Norwalk Municipal Code treats any average noise reading at the residential property line that exceeds the ambient (background) noise level by more than 5 dBA as prima facie evidence of a violation. Officers measure with a sound-level meter.
What hours count as 'daytime' for noise purposes?
Monday-Friday 7 AM to 8 PM; Saturday 8 AM to 8 PM; Sunday and federal/state holidays 9 AM to 8 PM. Outside those windows, the stricter nighttime expectations apply.
Pomona FAQ
What are Pomona's quiet hours?
Quiet hours run from 10 PM to 7 AM. During this time, noise must not exceed 50 dBA in residential zones and must not be audible beyond 50 feet from its source.
Can I do construction during quiet hours?
No. Construction is prohibited between 8 PM and 7 AM on weekdays and Saturdays, and all day on Sundays and federal holidays.
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