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Kane County, IL Noise Ordinances: Decibel Limits (2026)

Some Restrictions

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

Key Facts

Governing rule: 35 Ill. Adm. Code 901.102
Source-to-residential: Class C to Class A limits apply
Impulsive sound: Limited by Sec. 901.104
Pure tones: Restricted by Sec. 901.106
Enforcement: Illinois EPA / Pollution Control Board

Summary

Industrial and commercial noise in Kane County is controlled by the Illinois Pollution Control Board property-line rules. Under 35 Ill. Adm. Code 901.102, a business (Class C land) may not emit octave-band sound to nearby residential (Class A) land above the state table, with lower limits at night.

City-specific rules exist: Aurora, and Elgin have their own decibel limits rules that differ from Kane County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

A person must not cause or allow the emission of sound during daytime hours from any property-line noise source located on any Class A, B or C land to any receiving Class A land that exceeds any allowable octave band sound pressure level specified in the following table.

View official code

Full Breakdown

For factories, warehouses, HVAC plants, and other commercial operations, Kane County relies on the statewide property-line noise limits rather than a separate county ordinance. Section 901.102 prohibits a property-line noise source on Class C (industrial) land from emitting octave-band sound to receiving Class A (residential) land above the specified levels, measured at any point within the receiving property using ANSI methods and one-hour Leq averaging. The rule also restricts highly impulsive sound (901.104) and prominent discrete tones (901.106). Complaints are investigated by the Illinois EPA, which can refer cases to the Pollution Control Board. Zoning of industrial uses in unincorporated Kane County is handled through the county's zoning ordinance and Development Department.

Violations & Fines

Exceeding property-line limits, impulsive-sound limits, or tone limits is a noise-pollution violation enforceable by the Illinois EPA and Pollution Control Board, which may order abatement and penalties.

Frequently Asked Questions

How is factory noise regulated in Kane County?

Through Illinois' property-line rule (35 Ill. Adm. Code 901.102): a business may not emit octave-band sound to nearby residential land above the state limits, which are lower at night and enforced by the Illinois EPA.

Are humming or whining machine tones covered?

Yes. Section 901.106 restricts prominent discrete (pure) tones, and Section 901.104 limits highly impulsive sound, in addition to the general octave-band limits.

Sources & Official References

Other rules in Kane County

Quiet HoursSome Restrictions Construction HoursSome Restrictions Amplified Music & Outdoor SoundSome Restrictions Barking DogsSome Restrictions Vehicle NoiseSome Restrictions Parking Rules: Abandoned VehiclesSignificant Restrictions Parking Rules: Driveway RulesSome Restrictions Fence Regulations: Material RestrictionsSignificant Restrictions Animal Ordinances: BeekeepingSome Restrictions Fire Regulations: Brush ClearanceSome Restrictions Fire Regulations: Smoke DetectorsSome Restrictions

All Kane County rules

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Decibel Limits in Cities Across Kane County

Aurora, IL Elgin, IL