Helicopter operations over Cook County fall under exclusive FAA jurisdiction under 49 USC 40103, so neither the county noise ordinance nor municipal codes can directly limit helicopter altitude or routes. Complaints route to the FAA Chicago FSDO and O'Hare TRACON.
Federal Aviation Act preemption (49 USC 40103) gives the FAA sole authority over aircraft in flight, including helicopters, so Cook County Chapter 38 noise provisions cannot regulate helicopter altitude, route, or in-flight noise. The FAA Chicago Flight Standards District Office (DPA FSDO) handles low-altitude complaints, and the Chicago TRACON (C90) sequences rotorcraft inbound to O'Hare and Midway. Helicopters using public-use heliports must comply with 14 CFR Part 91 minimum safe altitudes (1,000 feet over congested areas, 500 feet elsewhere unless landing). Cook County retains limited authority over heliport siting through Chapter 102 zoning in unincorporated areas. Municipal noise ordinances cannot reach in-flight operations.
Residents cannot cite operators under county or municipal noise codes for in-flight helicopter noise; FAA preemption controls. The FAA pursues 14 CFR Part 91 enforcement for low-flight violations through the Chicago FSDO complaint portal.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Des Plaines, IL
Des Plaines City Code 6-2-7(E) applies its dBA limits to vehicles and equipment on the public right of way (excessive at 65 dBA daytime / 50 dBA quiet hours ...
Des Plaines, IL
Des Plaines City Code 6-2-7(D) makes it unlawful to make or continue any sound determined to be excessive. Outside quiet hours, 6-2-7(E)(5) sets the threshol...
Des Plaines, IL
Des Plaines City Code 6-2-7(F) makes it unlawful to operate any sound-production or amplification device whose sound crosses a property line and raises total...
Des Plaines, IL
Des Plaines City Code Section 7-3-8 prohibits parking on designated streets during declared snow removal operations so that plows can clear the roadway; viol...
Des Plaines, IL
Des Plaines requires fences and the full lot to be properly maintained, including portions of a lot where a fence is not on the property line, and limits fen...
Des Plaines, IL
Des Plaines prohibits barbed-wire and electrically charged fences in residential areas; they are allowed only in nonresidential districts where the Zoning Ad...
Side-by-side rule comparisons with other cities in Cook County.
See how Des Plaines's helicopter noise rules stack up against other locations.
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