Noise from Specific Sources in Riverside County, CA (2026)

4 county-level rules, plus city-specific rules for 6 cities in Riverside County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Riverside County. If you live within an incorporated city, that city's own rules apply — see the city list below.

HVAC & Mechanical Noise

HVAC equipment in unincorporated Riverside County must comply with Ordinance No. 847 noise limits — typically 55 dBA daytime and 45 dBA nighttime at the nearest residential property line. CA Building Energy Code (Title 24) also regulates placement to minimize noise.

HVAC Noise in Riverside County

Some Restrictions

Full ordinance details →Official source ↗

Bar & Nightclub Noise

Bars and nightclubs in unincorporated Riverside County are subject to Ordinance No. 847 noise limits plus Conditional Use Permit (CUP) noise conditions. Amplified music must not exceed 55 dBA at residential property lines after 10 PM. CA ABC may also impose noise conditions on alcohol licenses.

Bar & Nightclub Noise in Riverside County

Some Restrictions

Full ordinance details →Official source ↗

Car Alarm Limits

California Vehicle Code §22651.5 authorizes towing cars with alarms sounding over 20 minutes. Riverside County Ordinance No. 847 treats continuous car alarms as a noise nuisance, and Sheriff's Department may cite or tow offending vehicles.

Car Alarm Rules in Riverside County

Some Restrictions

Full ordinance details →Official source ↗

Generator Noise

Portable and standby generators in unincorporated Riverside County must comply with Ordinance No. 847 noise limits except during declared emergencies or PSPS events. Permanent generators require building permits, and placement must meet 55 dBA day / 45 dBA night at property lines.