Pacifica, CA Noise from Specific Sources: Car Alarm Limits (2026)
Key Facts
- Permit exemption
- Audible car alarms skip the alarm-permit chapter
- Siren-mimic ban
- Cannot sound like an emergency vehicle siren
- Auto shutoff
- Must silence within 15 minutes, Section 5-16.06(c)
- Governing sections
- Pacifica Municipal Code §§ 5-16.03, 5-16.06
- Max fine
- $250 per Section 5-16.09
Summary
In the City of Pacifica, an audible car alarm is exempt from the City's alarm-permit chapter, but it must still meet two noise rules: it cannot mimic an emergency-vehicle siren, and it must shut itself off within fifteen minutes of triggering. Pacifica Municipal Code Section 5-16.03 sets the permit exemption and Section 5-16.06(b)-(c) carries the actual noise limits.
EXCEPTION: ... Audible alarms affixed to automobiles. The provisions of this chapter shall not be applicable to audible alarms affixed to automobiles, except for the prohibitions set forth in Section 5-16.06 of this chapter. ... (b)No person shall have installed an audible alarm system which, upon activation, emits a sound similar to sirens in use on emergency vehicles.(c)No person shall install an audible alarm system which does not automatically discontinue emitting an audible sound within fifteen (15) minutes after it is activated.
Full Breakdown
02 as any alarm system designed expressly to be connected to a motor vehicle to detect its unauthorized use or entry. 06. Those prohibitions matter for car owners: subsection (b) bars installing an audible alarm system that, when activated, emits a sound similar to sirens used on emergency vehicles, and subsection (c) bars installing one that does not automatically discontinue its audible sound within fifteen minutes of activation. The same section also requires a back-up power supply able to run an alarm for four hours during a power failure under subsection (d), and bars auto-dialers that tie up the City's emergency telephone trunk lines under subsection (e), rules aimed more at fixed premises alarms but written into the same section the car alarm exception references. 07 is an infraction with a fine capped at $250, distinct from the Code's general escalating infraction schedule.
Violations & Fines
A car alarm that sounds like an emergency siren or that keeps blaring past fifteen minutes violates Section 5-16.06(b)-(c). Section 5-16.09 makes a violation of Section 5-16.03 or 5-16.06 an infraction punishable by a fine of up to $250, separate from the escalating misdemeanor track that applies to other Code violations.
Frequently Asked Questions
Do I need a permit for my car alarm in Pacifica?
How long can a Pacifica car alarm legally keep sounding?
Can my car alarm sound like a police siren?
What's the fine for a car alarm violation in Pacifica?
Sources & Official References
Other rules in Pacifica
California rules heatmap·Compare Pacifica to another location·View the California noise from specific sources overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.