Decibel Limits: Pasadena vs Pomona
How do decibel limits rules compare between Pasadena, CA and Pomona, CA?
Pomona has fewer restrictions than Pasadena.
Pasadena, CA
Los Angeles County
Pasadena prohibits noise exceeding the ambient level by more than 5 dB at any property line under PMC Section 9.36.050. Construction equipment limited to 85 dBA at 100 feet. Amplified sound on private property cannot exceed 15 dB above ambient. Interior noise in multifamily residential must not exceed 50 dBA.
View full Pasadena rules →Pomona, CA
Los Angeles County
Pomona City Code Chapter 18, Article VII (Noise and Vibration Control) establishes exterior noise standards measured in dBA. Residential zones have a daytime limit of 60 dBA (7 AM-10 PM) and nighttime limit of 50 dBA (10 PM-7 AM) at the property line.
View full Pomona rules →Key Facts Comparison
| Fact | Pasadena | Pomona |
|---|---|---|
| Property Line | Ambient + 5 dB max | - |
| Construction | 85 dBA at 100 ft | - |
| Interior (Multi) | 50 dBA | - |
| Code | PMC Ch. 9.36 | - |
| Code Section | - | Ch. 18, Art. VII, §§18-301–18-315 |
| Residential Day | - | 60 dBA (7 AM–10 PM) |
| Residential Night | - | 50 dBA (10 PM–7 AM) |
| Commercial Day | - | 70 dBA (7 AM–10 PM) |
| Measurement | - | A-weighted, slow response |
Highlighted rows indicate differences between cities.
Pasadena FAQ
What is the noise limit in Pasadena?
Noise cannot exceed the ambient level by more than 5 decibels at any property line under PMC Section 9.36.050. Ambient is measured as a 15-minute average.
What is the construction equipment noise limit?
Individual pieces of construction equipment cannot generate noise exceeding 85 dBA at a distance of 100 feet under Section 9.36.070.
Pomona FAQ
What are Pomona's residential noise limits?
Under Section 18-311, single-family residential zones allow 60 dBA during daytime (7 AM-10 PM) and 50 dBA at night (10 PM-7 AM), measured at the property line.
How are noise levels measured in Pomona?
All measurements use A-weighted sound level meters at slow response, per Section 18-301 definitions.
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