Longmont does not separately regulate aircraft overflight noise. Aircraft operations are pre-empted by federal law administered by the Federal Aviation Administration (FAA), so the city's noise ordinance (LMC § 10.20.100 / § 10.20.110) cannot be applied to in-flight aircraft.
Longmont's noise ordinance in LMC Title 10, Chapter 10.20 does not contain aircraft-specific decibel limits, curfews, or flight-path restrictions. Under the federal Airline Deregulation Act and 49 U.S.C. § 40103, the FAA holds exclusive authority over the navigable airspace and over aircraft operations, noise standards, and certification. Local municipalities are pre-empted from imposing operational restrictions on aircraft in flight or from setting alternative noise certification standards. Vance Brand Municipal Airport (KLMO) is owned and operated by the City of Longmont; the city can adopt airport-proprietor noise abatement procedures (such as voluntary preferred runways or fly-friendly programs), but these are not codified in Title 10. Residents experiencing aircraft noise should report concerns to Vance Brand Airport administration or the FAA's Noise Complaint Initiative rather than to Longmont Police.
Not applicable — no local code section. Federal enforcement under 14 CFR Part 91 and FAA noise certification standards.
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