Noise from Specific Sources in Placer County, CA (2026)
2 county-level rules, plus city-specific rules for 1 city in Placer County, California.
Verified from official government sources
HVAC & Mechanical Noise
Placer County treats air conditioners and refrigeration equipment as a 'fixed sound source' under the county noise ordinance, but Code Section 9.36.030(A)(1) exempts residential air conditioners in good working order from the noise limits entirely. Non-residential HVAC and refrigeration units that count as fixed sound sources still have to meet the article's general sound level standards for sensitive receptors.
Placer County HVAC and AC Noise Rules
Some RestrictionsPlacer County Code § 9.36.030(A)(1)
Sound or noise emanating from the following sources and activities are exempt from the provisions of this title: 1. Sound sources typically associated with residential uses (e.g., children at play, air conditioners in good working order, etc.);
Car Alarm Limits
Car alarms are exempt from Placer County's noise ordinance. Code Section 9.36.030(A)(3) excuses house and car alarms and other safety and warning devices from the article's sound limits, so an alarm sounding on a legitimate trigger is not, by itself, a noise violation. The exemption only holds if the device is not negligently maintained or operated.
Placer County Car Alarm Noise Exemption
Few RestrictionsPlacer County Code § 9.36.030(A)(3)
Safety, warning and alarm devices, including house and car alarms, and other warning devices that are designed to protect the health, safety and welfare, provided such devices are not negligently maintained or operated;
Noise from Specific Sources by City in Placer County
1 cities in Placer County have their own noise from specific sources rules. Each link goes to that city's dedicated page with code citations.
All Placer County ordinances
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