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Portland, OR

Pop. 652,503 · Multnomah County

Most looked-up rules in Portland

The topics readers look up most across the site, as they apply in Portland.

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Noise Ordinances

Vehicle Noise

Some Restrictions

Portland requires every motor vehicle on public roads to run a working muffler, bans exhaust cutouts and screeching tires, and prohibits engine/compression brakes near homes for trucks…

Quiet Hours

Some Restrictions

Portland bars running sound equipment between 10 p.m. and 7 a.m. if it's plainly audible inside a neighboring dwelling, and separately cuts citywide ambient noise limits by 5 dBA…

Aircraft Noise

Significant Restrictions

Homes within PDX's 65 and 68 DNL noise contours must meet a 45 dBA interior noise standard, sign a recorded noise disclosure statement, and grant the Port of Portland a noise easement…

Amplified Music & Outdoor Sound

Some Restrictions

Amplified outdoor music in Portland must stay within Title 18's zone-based decibel limits: only non-amplified sound from athletic and entertainment events is exempt.

Leaf Blower Rules

Significant Restrictions

Portland bars gasoline leaf blowers citywide from January through September starting in 2026, expanding to a year-round ban in 2028; electric blowers stay legal under City Code Chapter…

Decibel Limits

Some Restrictions

Portland caps industrial-zoned noise sources at 65-75 dBA measured at the property line, with the exact ceiling depending on the zoning of the receiving property, plus a five dBA cut…

Barking Dogs

Some Restrictions

Portland bans animal noise that unreasonably disturbs neighbors: barking, whining, or howling must run continuously for 10 minutes or intermittently for 30 minutes to count as a…

Construction Hours

Some Restrictions

Commercial construction equipment may run up to 85 dBA from 7 a.m. to 6 p.m. weekdays and Saturdays. From 6 p.m. to 7 a.m. daily, all day Sunday, and on legal holidays, only the lower…

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