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πŸ”Š Noise Ordinances/Decibel Limits

Decibel Limits: Irvine vs Orange

How do decibel limits rules compare between Irvine, CA and Orange, CA?

Irvine and Orange have similar restriction levels.

Irvine, CA

Orange County

Some Restrictions

Irvine establishes decibel limits by noise zone under IMC Title 6, Division 8, Chapter 2. Zone 1 (residential) has the strictest standards with lower nighttime limits. Four noise zones are designated based on land use.

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Orange, CA

Orange County

Some Restrictions

The City of Orange uses A-weighted decibel (dBA) measurements at slow response under OMC Chapter 8.24 to evaluate noise complaints. Noise that disturbs the comfort and repose of reasonable persons is prohibited regardless of decibel level.

View full Orange rules β†’

Key Facts Comparison

FactIrvineOrange
Zone 1 (Residential)Strictest limits-
Zone 2 (Office)Moderate limits-
Zone 3 (Commercial)Higher limits-
Zone 4 (Industrial)Highest limits-
Code SectionIMC Title 6, Div. 8, Ch. 2OMC Chapter 8.24
Measurement-dBA slow response
Leaf Blower Limit-70 dBA at 50 feet
Nighttime Standard-Audible 100 ft = violation

Highlighted rows indicate differences between cities.

Irvine FAQ

What are the noise limits in Irvine?

Limits vary by noise zone. Zone 1 (residential) has the strictest standards with lower nighttime limits. Check IMC Title 6, Division 8, Chapter 2 for exact decibel values.

How is noise measured in Irvine?

Noise is measured at the receiving property line using A-weighted sound level meters, with corrections for tonal or impulsive character.

Orange FAQ

What are the decibel limits in Orange?

The city uses a reasonableness standard rather than fixed decibel limits for most sources. Leaf blowers have a specific 70 dBA limit at 50 feet.

How is noise measured for enforcement?

Noise is measured in A-weighted decibels (dBA) using a sound level meter at slow response per OMC Chapter 8.24.

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