Bossier Parish, LA Noise from Specific Sources: Car Alarm Limits (2026)

Section 46-36(b) exempts emergency signaling devices from the parish's section 46-35 decibel limits, but only under specific conditions, and paragraph (2) is the rule that governs car alarms. Any exterior burglar or fire alarm, including a motor vehicle burglar alarm, must terminate within 15 minutes of activation unless a genuine emergency exists; an alarm that keeps sounding past that window loses its exemption and becomes an enforceable noise violation. The same paragraph treats repeat false alarms as a standalone problem: if an alarm false-triggers or accidentally activates more than twice in a calendar month, the owner or person responsible for it is in violation of the section regardless of how quickly any individual alarm shuts off.

, using only the minimum cycle test time, never exceeding five minutes, and never more than once per calendar month. A noise control officer designated under section 46-32 investigates complaints about a car alarm that runs long or triggers repeatedly, and can pursue enforcement once the conduct meets the enumerated-act standard in section 46-36 without needing a separate decibel measurement.