Quiet Hours: 10PM-7AM
Residential Decibel Limit: Not specified; based on 'plainly audible' (Day) / Not specified; based on 'plainly audible' (Night)
Summary: Boise, ID noise ordinances, primarily Boise City Code Chapter 5-7, Public Noise Disturbance, prohibit loud amplification devices if plainly audible within any residence not the source, or 100 feet or more on a public right-of-way. Quiet hours are 10 PM to 7 AM, with violations resulting in a $100 fine. Vehicle noise, including excessive revving and modified exhausts, carries higher penalties up to $356.50.