Quiet Hours: Rialto vs San Bernardino
How do quiet hours rules compare between Rialto, CA and San Bernardino, CA?
Rialto and San Bernardino have similar restriction levels.
Rialto, CA
San Bernardino County
Rialto Municipal Code Chapter 9.50 (Noise Control) prohibits unreasonably loud, unnecessary or unusual noise that disturbs the peace at any hour, and sets two nighttime thresholds for amplified sound: 'plainly audible' at 50 ft between 8 a.m.–10 p.m. and at 25 ft between 10 p.m.–8 a.m.
View full Rialto rules →San Bernardino, CA
San Bernardino County
San Bernardino Municipal Code Chapter 8.54 sets quiet hours from 10 PM to 7 AM weekdays and 10 PM to 9 AM weekends and holidays. Exterior residential limits are about 55 dBA day and 50 dBA night.
View full San Bernardino rules →Key Facts Comparison
| Fact | Rialto | San Bernardino |
|---|---|---|
| Daytime amplified-sound limit | Plainly audible at 50 ft, 8 a.m.–10 p.m. (RMC §9.50.030(A)(4)(c)) | - |
| Nighttime amplified-sound limit | Plainly audible at 25 ft, 10 p.m.–8 a.m. (RMC §9.50.030(A)(4)(d)) | - |
| Across property line | Plainly audible across any property boundary is prohibited at all hours (§9.50.030(A)(4)(a)) | - |
| Maximum fine | $1,000 per offense for 4th violation in 12 months (§9.50.130) | - |
| Enforcement | Police Department and Code Enforcement Division jointly (§9.50.080) | - |
| Weekday Quiet | - | 10 PM to 7 AM |
| Weekend Quiet | - | 10 PM to 9 AM |
| Residential Day Limit | - | 55 dBA exterior |
| Residential Night Limit | - | 50 dBA exterior |
| Code | - | SBMC Chapter 8.54 |
Highlighted rows indicate differences between cities.
Rialto FAQ
What are Rialto's official quiet hours?
Rialto does not use a single 'quiet hours' label, but RMC §9.50.030(A)(4) draws the line at 10 p.m.–8 a.m., when amplified music or sound may not be 'plainly audible' beyond 25 feet from the source. During daytime hours (8 a.m.–10 p.m.) the threshold relaxes to 50 feet.
Can my neighbor be cited at 11 p.m. if I can hear their TV through the wall?
Yes. RMC §9.50.030(A)(4)(b) prohibits amplified sound that is plainly audible through partitions common to two residences within a building, at any hour. Detecting the bass vibration is enough to meet the 'plainly audible' standard under §9.50.020.
What is the fine for a first noise violation?
Up to $250 for a first conviction (RMC §9.50.130). The officer may instead issue a written warning first under §9.50.030(D); however a second violation within 72 hours can escalate to a criminal citation plus the actual cost of each police response (§9.50.090).
San Bernardino FAQ
What are quiet hours in San Bernardino?
10 PM to 7 AM on weekdays and 10 PM to 9 AM on weekends and holidays under SBMC Chapter 8.54.
Who enforces noise complaints?
The San Bernardino Police Department responds to noise complaints at 909-384-5742, and Code Enforcement handles recurring nuisance cases.
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