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Boulder County, CO Noise Ordinances: Aircraft Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Key Facts

County regulates aircraft?
No
Exemption
Sec 1.01.060(G)
Regulator
FAA (federal law)
Report flight noise to
Airport operator / FAA
Scope
Federal preemption

Summary

Boulder County's noise ordinance does not regulate aircraft. Section 1.01.060(G) exempts "operation of aircraft or other activities which are subject to federal law with respect to noise control," leaving airplane and helicopter noise to the FAA.

City-specific rules exist: Longmont, and Boulder have their own aircraft noise rules that differ from Boulder County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

The provisions of Sections 1.01.030, 1.01.040 and 1.01.050 of this ordinance shall not apply to: ... G. Operation of aircraft or other activities which are subject to federal law with respect to noise control.

Full Breakdown

Under Ordinance No. 92-28, Section 1.01.060(G), the county's noise limits do not apply to "Operation of aircraft or other activities which are subject to federal law with respect to noise control." Aircraft noise is preempted by federal law and regulated by the FAA, not by Boulder County. Concerns about flights near Boulder Municipal Airport, Erie Municipal Airport, or Rocky Mountain Metropolitan Airport should go to the airport operator or the FAA. The county cannot set decibel caps or curfews on aircraft. Drones (UAS) are likewise governed primarily by FAA rules, though local land-use and privacy rules may apply on the ground.

Violations & Fines

The county issues no aircraft-noise penalties. Complaints route to the FAA or the relevant airport authority under federal noise-control jurisdiction.

Frequently Asked Questions

Can Boulder County limit airplane or helicopter noise?
No. Sec 1.01.060(G) exempts aircraft subject to federal noise-control law. The FAA has jurisdiction over aircraft noise, not the county.
Where do I report aircraft noise near Boulder?
Contact the operating airport (e.g., Boulder Municipal, Rocky Mountain Metropolitan) or the FAA. The county noise ordinance does not apply to aircraft.

Sources & Official References

Other rules in Boulder County

All Boulder County rules

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