Quiet Hours: Fontana vs Rialto
How do quiet hours rules compare between Fontana, CA and Rialto, CA?
Fontana and Rialto have similar restriction levels.
Fontana, CA
San Bernardino County
Fontana enforces residential quiet hours under Fontana Municipal Code Chapter 18 (Nuisances) and the Zoning and Development Code noise standards in Table 30-469. Nighttime hours of roughly 10 PM to 7 AM are treated as protected quiet time, and noise that disturbs neighbors triggers Code Enforcement action.
View full Fontana rules →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 →Key Facts Comparison
| Fact | Fontana | Rialto |
|---|---|---|
| Code | FMC Chapter 18 and Zoning Table 30-469 | - |
| Night Hours | 10 PM to 7 AM residential | - |
| Day Hours | 7 AM to 10 PM residential | - |
| Enforcement | Code Enforcement (909) 350-7626 | Police Department and Code Enforcement Division jointly (§9.50.080) |
| Framework | Nuisance plus zoning noise standards | - |
| 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) |
Highlighted rows indicate differences between cities.
Fontana FAQ
Does Fontana have a single numeric quiet-hours code?
Not exactly. It combines Chapter 18 nuisance rules with Zoning Table 30-469 land-use noise limits that are stricter from 10 PM to 7 AM.
Who do I call for a late-night noise complaint?
Call Fontana Police non-emergency for active disturbances at night, and Code Enforcement at (909) 350-7626 for repeat daytime issues.
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).
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