Statewide Iowa law requires every motor vehicle to have a working muffler and bans muffler cutouts and bypass devices. This applies on all highways in Polk County. The Sheriff and city police enforce it; a scheduled fine applies.
Iowa Code section 321.436 requires every motor vehicle to be equipped at all times with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke, and prohibits muffler cutouts, bypasses, or similar devices on a highway. The rule is statewide, so it governs roads throughout Polk County, both unincorporated areas and cities. Loud exhaust, straight pipes, and 'jake brake' style noise complaints are enforced under this statute by the Polk County Sheriff and municipal police.
A muffler violation carries a scheduled fine under Iowa Code section 805.8A(3)(ah); the vehicle may fail to meet equipment requirements until repaired.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
polk-county-ia
Polk County allows backyard composting but regulates it through the Health Nuisance Regulation: a compost pile that harbors vermin, produces offensive odors,...
polk-county-ia
Polk County has no ordinance for or against artificial turf on residential lots. Installation on unincorporated land is generally unrestricted; cities and HO...
polk-county-ia
Polk County has no ordinance banning native or prairie landscaping, and the county promotes native roadside vegetation. The one legal limit: your planting ca...
polk-county-ia
Iowa has no state ban on collecting rainwater, and Polk County sets no rain-barrel ordinance. Residents may capture roof runoff in barrels or cisterns; only ...
polk-county-ia
Polk County sets no lawn-watering schedule. Central Iowa's water is managed by Central Iowa Water Works / Des Moines Water Works, which can impose voluntary ...
polk-county-ia
Iowa Code 317.10 requires every landowner to destroy all noxious weeds on their land as directed by the county board of supervisors. Polk County's Weed Commi...
See how Polk County's vehicle noise rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.