Quiet hours in Troutdale, OR — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Troutdale Municipal Code Chapter 8.24 sets quiet hours of 10:00 p.m. to 7:00 a.m. Under TMC 8.24.035, noise is unreasonable during those hours if it is plainly audible inside any noise sensitive unit that is not the source. Enforcement is by the Multnomah County Sheriff's Office.
TMC 8.24.035 prohibits unreasonable noise; the chapter's core 10 p.m.-to-7 a.m. window applies a plainly-audible standard rather than decibel meters. TMC 8.24.020 defines 'plainly audible' as any sound whose content can be clearly heard by a listener of ordinary hearing capabilities, and defines 'noise sensitive unit' to include any home, apartment, mobile home, church, school, day care, hospital, or nursing center with doors and windows closed. TMC 8.24.050 lists exceptions, including aircraft, railway, farm equipment, and noise that is constitutionally protected speech between 7 a.m. and 10 p.m. Troutdale contracts noise enforcement to the Multnomah County Sheriff's Office.
Chapter 8.24 violations are processed as Troutdale municipal code infractions; the Sheriff's Office may issue citations and also reviews variance applications. Repeat or amplified violations are the most common enforcement triggers.
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