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

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

Key Facts

County aircraft rule
None, federally preempted
Citation
Sec. 14-9-60(C)
Regulator
FAA / Noise Control Act
Crop dusters
Exempt agricultural equipment
Complaints to
FAA or the airport

Summary

Weld County's noise ordinance does not regulate aircraft. Sec. 14-9-60(C) exempts noise from operating aircraft and other federally preempted activities. Aircraft and crop-duster noise is controlled by the FAA, not the county or Greeley.

These county ordinances apply to unincorporated areas of Weld County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

The provisions of this Article shall not apply to:

A. Any noise resulting from any authorized emergency vehicle responding to an emergency call or acting in time of emergency.

B. The sound made by any burglar, fire, personal safety or other warning device.

C. Any noise made during the operation of aircraft or other activities which are preempted by federal law, with respect to noise control.

D. Any noise made during the operation of agricultural equipment which is used on a farm or ranch in the production of agricultural products.

E. Sounds made by dogs and by farm animals, including but not limited to bovines, goats, horses, fowl and llamas.

F. Any noise related to the operation of a railroad.

G. Any noise related to the production, promotion or holding of cultural, entertainment, athletic or patriotic events (including but not limited to concerts), which are sponsored by the State, any political subdivision of the State or any of its lessees, licensees or permittees.

H. Any noise related to the use of property for the purposes of conducting speed or endurance events involving motor or other vehicles, but only where such use has been authorized by resolution, variance permit or nonconforming use authorized by the political subdivision or governmental agency having jurisdiction to authorize such use, and only during the specific period of time that such use is authorized.

I. Any noise made by public utilities regulated pursuant to Title 40, C.R.S.

J.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Charter and County Code: Supplement 95).

Full Breakdown

Weld County Code Sec. 14-9-60(C) exempts any noise made during the operation of aircraft or other activities preempted by federal law. Because federal law (the FAA and the Noise Control Act) governs aircraft operations and airspace, neither Weld County nor Greeley can set aircraft noise limits. The county's definitions also treat crop-dusting airplanes as exempt agricultural equipment, reflecting Weld's farming economy. Complaints about low-flying or excessive aircraft noise should go to the FAA or the operating airport rather than local code enforcement.

Violations & Fines

Not enforceable locally; aircraft noise is exempt. Direct complaints to the FAA or the airport.

Frequently Asked Questions

Can Weld County or Greeley limit aircraft noise?
No. Sec. 14-9-60(C) exempts aircraft noise as federally preempted; the FAA regulates aircraft operations and airspace, so local codes cannot set limits.
Is crop-dusting noise regulated?
No. Weld County treats crop-dusting airplanes as exempt agricultural equipment, and aircraft operation is federally preempted regardless.

Sources & Official References

Other rules in Weld County

All Weld County rules

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