Roseville, CA Noise from Specific Sources: Car Alarm Limits (2026)
Key Facts
- Exempt device
- House and car alarms (§9.24.030(C))
- Condition
- Must not be negligently maintained or operated
- Backstop
- Noise-disturbance nuisance rule (§9.24.150)
- Violation class
- Infraction; each day separate offense (§9.24.200)
- Enforcement officer
- City manager or designee
Summary
House and car alarms are exempt from Roseville's noise limits under Municipal Code Section 9.24.030(C), so a triggered alarm does not by itself violate the chapter's decibel tables. The exemption comes with one condition: the device cannot be negligently maintained or operated, language the city can use against an alarm that malfunctions repeatedly or runs unattended.
Safety, warning and alarm devices, including house and car alarms, and other warning devices that are designed to protect the health, safety and welfare, provided such devices are not negligently maintained or operated;
Full Breakdown
020, a path to act against a car alarm that a resident repeatedly ignores or a house alarm with a faulty sensor that triggers routinely. 120, an isolated alarm activation is not measured against the hourly decibel limits that apply to fixed sound sources at a sensitive receptor's property line; the alarm simply is not a covered source unless negligence is shown. 150, which reaches any "loud, unnecessary, excessive or offensive noise or unusual sound which unreasonably disturbs the peace and quiet of any sensitive receptor," with the enforcement officer weighing the sound's duration, timing, and whether it is "recurrent, intermittent, or constant," a standard tailor-made for an alarm left blaring.
Violations & Fines
A single alarm trip is not a citable event under Chapter 9.24. If the enforcement officer determines the device is negligently maintained or operated, or the recurring alarm rises to a noise disturbance under Section 9.24.150, the violation is an infraction under Section 9.24.200, with each day of continued disturbance a separate offense and repeat responses billable to the responsible party.
Frequently Asked Questions
Is it illegal for a car alarm to go off in Roseville?
What can I do about a neighbor's car alarm that goes off constantly?
Does the alarm exemption cover home security sirens too?
Sources & Official References
Other rules in Roseville
California rules heatmap·Compare Roseville to another location·View the California noise from specific sources overview
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