Maui County, HI Noise from Specific Sources: Low-Frequency Bass Limits (2026)

010 that these amplified speaker systems are a nuisance and a hazard because they can prevent a driver from hearing sirens and horns. 020 defines "public area" to include any public street, highway, building, sidewalk or park, and defines "sound amplification system" as an amplified speaker sound system, or any part of one, located anywhere in a vehicle. 030 sets the operative rule using an audibility test rather than a decibel meter: no driver may operate, or let anyone else operate, a sound amplification system that can be heard outside the vehicle from fifty feet or more while the vehicle is parked or operated in a public area, unless the system is being used to request assistance or warn of a hazard.

040 tiers the penalty by repeat offense: $25 to $100 for a first conviction, $100 to $250 for a second, and $250 to $500 for a third. 050 exempts authorized emergency vehicles, vehicles operated by gas, electric, communications or water utilities, and vehicles used for advertising, parades, or political or other special events.