Riverside's Noise Ordinances: The Rules That Matter

Every city handles noise ordinances a little differently. In Riverside, California, there are 10 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Decibel Limits

RMC §7.25.010 sets exterior noise limits by land-use category: Residential 55 dBA day (7 a.m.–10 p.m.) / 45 dBA night (10 p.m.–7 a.m.); Office/Commercial 65 dBA; Industrial 70 dBA; Community Support 60 dBA; Public Recreation 65 dBA; Nonurban 70 dBA — all any time.

Key details: Code section: RMC §7.25.010 Table 7.25.010A; §7.30.015. Residential day: 55 dBA (7 a.m.–10 p.m.). Residential night: 45 dBA (10 p.m.–7 a.m.). Office/Commercial: 65 dBA any time. Industrial: 70 dBA any time.

Per §7.15.005, Code Enforcement or RPD investigate and may charge misdemeanor or infraction; each day is a separate offense. Property owners may also seek a variance under §7.40.010 (one-year max, requires hardship findings and 300-foot mailed notice).

Amplified Music & Events

Under RMC § 7.35.010(D) as amended in 2025, any loud music or noise from sound amplifying equipment or live performance that is plainly audible 25 feet or more from the source property is prohibited at any time.

Key details: Audibility rule: Plainly audible 25 ft from property = violation. Applies: Anytime (per 2025 amendment). Code sections: RMC §§ 7.35.010(B)(2), 7.35.010(D). Day exterior limit (residential): 55 dBA. Night exterior limit (residential): 45 dBA.

RMC § 7.15.010: $500 first / $750 second / $1,000 third+ violation. May be charged as a misdemeanor or infraction. Each day of continuing violation is a separate offense (§ 7.15.005(C)). The 25-foot audibility test is enforceable without a sound meter, which makes amplified-music citations easier to issue than dBA-based fines.

This is not one of those rules that cities tend to ignore. Riverside actively enforces its amplified music & events requirements.

Aircraft Noise

In-flight aircraft noise is preempted by federal law (FAA). The City regulates only aircraft repair/testing at the ground level under RMC §7.35.010(B)(10), and exempts state/federally regulated activities under §7.35.020(C).

Key details: Code section: RMC §7.35.010(B)(10); §7.35.020(C). In-flight noise: Federally preempted (FAA). Ground repair/testing: Subject to noise-disturbance rule. Local airport: Riverside Municipal Airport (general aviation). State framework: 21 CCR §5000 (CA Airport Noise Standards).

Aircraft-repair/testing violations are prosecuted under RMC §7.15.005(C) as either misdemeanor or infraction; each day is a separate offense. Operational aircraft-noise complaints should be directed to Riverside Municipal Airport administration or the FAA — the City Code Enforcement Division has no jurisdiction over in-flight noise.

If you are coming from a city with tighter rules, you will find Riverside gives residents more flexibility on aircraft noise.

Leaf Blower Rules

Riverside does not ban gas leaf blowers, but RMC § 7.35.010(B)(6) prohibits operating any lawn or garden tool between 10 p.m. and 7 a.m., and § 7.35.020(D) limits residential property maintenance to 7 a.m. to 10 p.m.

Key details: Permitted hours: 7 a.m. - 10 p.m.. Prohibited hours: 10 p.m. - 7 a.m.. City-wide gas blower ban: No. Code sections: RMC §§ 7.35.010(B)(6), 7.35.020(D). State backdrop: CARB AB 1346 SORE rule (2024).

Operating a leaf blower or mower outside the 7 a.m.-10 p.m. residential maintenance window, or after 10 p.m./before 7 a.m. when it disturbs neighbors, can trigger Title 7 fines under § 7.15.010 ($500 / $750 / $1,000). Equipment must also be 'sufficiently muffled and maintained so as not to create a noise disturbance' per § 7.35.010(B)(6).

The rules around leaf blower rules in Riverside lean permissive, but that does not mean anything goes.

Industrial Noise

Industrial-zoned property (BMP, I, AIR zones) may not exceed 70 dBA at the property line at any time, per RMC §7.25.010 Table 7.25.010A. Cumulative-period 'plus 5/10/15/20 dB' overage tiers apply.

Key details: Code section: RMC §7.25.010 (Table 7.25.010A). Industrial limit: 70 dBA at property line, any time. Zones covered: BMP, I, AIR. Measurement: A-weighted, slow response (§7.20.010). Legacy A/C units: 60 dBA pre-1980; 55 dBA post-1980.

Enforced by Code Enforcement Division or RPD per §7.15.005(A). Violations may be charged as a misdemeanor or infraction (§7.15.005(C)); each day constitutes a separate offense. Initial response is typically a warning notice; continued violation leads to citation and referral to the City Attorney.

Construction Hours

Under RMC § 7.35.010(B)(5), construction, drilling, grading, repair and demolition work is prohibited between 7 p.m. and 7 a.m. on weekdays, between 5 p.m. and 8 a.m. on Saturdays, and at any time on Sundays or federal holidays.

Key details: Weekday hours: 7 a.m. - 7 p.m.. Saturday hours: 8 a.m. - 5 p.m.. Sunday/holidays: Prohibited. Code section: RMC § 7.35.010(B)(5). Emergency exception: Yes - § 7.35.020(A).

Violations carry the Title 7 fine schedule in § 7.15.010: $500 first offense, $750 second, $1,000 third or subsequent. Construction noise that exceeds the underlying land-use exterior limit (Table 7.25.010A) is independently actionable. Variances for after-hours work are obtained through the Zoning Administrator per § 7.40.010 and require an unreasonable-hardship showing.

Vehicle Noise

RMC §7.35.010(B)(10) bars vehicle/motorcycle/motorboat/aircraft repair, rebuilding, modifying, or testing that disturbs across a residential line. Powered model vehicles are restricted between 7 p.m.–7 a.m. (§7.35.010(B)(7)). Operational on-highway vehicle noise is preempted by California Vehicle Code §27150 et seq.

Key details: Code section: RMC §7.35.010(B)(7), (B)(10); §7.10.110. State preemption: CVC §§27150–27207 (mufflers, modified exhaust). Repair/testing rule: No disturbance across residential line. Powered model vehicles: Restricted 7 p.m.–7 a.m.. Underlying decibel cap: Per land-use category (Table 7.25.010A).

Local violations enforced by Code Enforcement or RPD under §7.15.005 — misdemeanor or infraction, each day a separate offense. CVC §27151 violations (modified exhaust) are a CHP/RPD traffic infraction with a base fine plus state assessments (typically $200+ with fees) and a 'fix-it' correction requirement.

Barking Dogs

RMC § 7.35.010(B)(3) makes it unlawful to harbor any animal or bird that frequently or for a continued duration howls, barks, meows, or squawks so as to create a noise disturbance across a residential or commercial property line.

Key details: Code section: RMC § 7.35.010(B)(3). Standard: Frequent or continued-duration barking across a property line. Definition: Noise disturbance per § 7.10.125. Enforcing agency: Code Enforcement / Riverside Police Department. First-offense fine: $500.

Title 7 fine schedule under § 7.15.010 applies: $500 / $750 / $1,000. Violations may also be charged as a misdemeanor or infraction; each day is a separate offense (§ 7.15.005(C)). Complainants typically document dates, times, and duration of barking - Riverside's Nuisance Complaint Packet (Public Works/Animal Services) is the intake mechanism.

Quiet Hours

Riverside Municipal Code Title 7 sets nighttime quiet hours from 10 p.m. to 7 a.m., with a 45 dBA exterior limit at residential property lines at night and 55 dBA during the day.

Key details: Quiet hours: 10 p.m. to 7 a.m.. Residential night limit: 45 dBA at property line. Residential day limit: 55 dBA at property line. Plainly audible distance (night): 25 feet. First-offense fine: $500.

Per RMC § 7.15.010 (as amended in 2025): first violation $500, second violation within the same period $750, third or subsequent violation $1,000. Violations may also be prosecuted as misdemeanors or infractions under § 7.15.005(C), with each day constituting a separate offense. Code Enforcement and the Riverside Police Department share enforcement authority.

Outdoor Music

RMC §7.35.010(B)(1)–(2) prohibits amplified music, radios, instruments, and loudspeakers from disturbing neighbors. Between 10 p.m. and 7 a.m., audibility at 50 ft from the source is prima facie evidence of a violation; the night threshold tightens to 25 ft for music/sound under §7.35.010(B)(11).

Key details: Code section: RMC §7.35.010(B)(1), (B)(2), (B)(11). Daytime audibility test: 50 ft from source, 7 a.m.–10 p.m.. Nighttime audibility test: 25 ft from source, 10 p.m.–7 a.m.. Quiet hours: 10:00 p.m.–7:00 a.m.. Event exemption: Authorized school/public events 7 a.m.–10 p.m. (§7.35.020(B)).

Enforced by RPD or Code Enforcement (§7.15.005). Violations may be charged as a misdemeanor or infraction; each day constitutes a separate offense. Citation amounts are set by City Council resolution.

The Bottom Line

Compared to many U.S. cities, Riverside gives residents more room on noise ordinances. 2 of the 10 rules here are rated permissive. But permissive does not mean unregulated. There are still requirements, and the city does enforce them when violations are reported.

Keep in mind that Riverside can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.