Portable and standby generators in Riverside are regulated under RMC Chapter 9.32 as stationary noise sources and must not exceed 55 dBA day / 45 dBA night at the nearest residential property line. Emergency operation during PSPS or Santa Ana wind power outages is generally exempt while the outage is active.
Riverside residents increasingly rely on portable and permanently installed standby generators because of SCE Public Safety Power Shutoffs during Santa Ana wind events and hillside fire conditions. RMC Chapter 9.32 treats a generator as a stationary noise source subject to the residential property-line limits of 55 dBA daytime and 45 dBA nighttime. During an actual declared utility outage, routine testing, or legitimate emergency, enforcement is relaxed while power is out. However, nightly or weekend generator operation as a primary power source or for long-term testing is not exempt. Typical 7-10 kW standby units produce 65-75 dB at 23 feet; homeowners should locate units away from the shared property line, behind a sound enclosure, or select inverter-style models rated under 60 dB. Permanently installed standby generators also require a building permit and electrical permit from Building & Safety, plus SCAQMD Rule 1110.2 registration if diesel-powered over 50 hp. Weekly self-tests should be scheduled for midday (not early morning or evening) to minimize complaints.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Riverside code enforcement directly for current fines, enforcement procedures, and hearing options.
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