Chicago, IL Noise Ordinances: Aircraft Noise (2026)
Key Facts
- Authority
- Chicago Dept. of Aviation / FAA
- Sound Insulation
- Free RSIP for eligible homes near O'Hare and Midway
- Nighttime Restrictions
- Preferential runway use 10 PM - 7 AM
- Noise Monitoring
- 24/7 remote monitoring stations around both airports
- Federal Preemption
- FAA Part 150 governs in-flight noise
Summary
Chicago regulates aircraft noise primarily through O'Hare and Midway airport noise abatement programs administered by the Chicago Department of Aviation (CDA). The city has invested over $1 billion in residential sound insulation programs for homes near both airports.
"Airport" means an airport, as defined in Section 6 of the Illinois Aeronautics Act, that has more than 500,000 aircraft operations (take-offs and landings) per year... No later than December 31, 2008, each airport shall have an operable permanent noise monitoring system. The system shall be operated by the airport sponsor... On or before June 30, 2018, each airport shall upgrade its permanent noise monitoring system... The permanent noise monitoring report shall contain... Noise contour maps showing the 65 annual CNEL, 70 annual CNEL and 75 annual CNEL zones around the airport.
Full Breakdown
The Chicago Department of Aviation manages the O'Hare Noise Compatibility Commission (ONCC) and the Midway Noise Compatibility Commission. Residential Sound Insulation Programs (RSIP) provide free sound insulation to eligible homes. Nighttime preferential runway use programs are in effect from 10 PM to 7 AM. The FAA sets federal noise standards under 14 CFR Part 150, which preempt local regulation of in-flight aircraft noise. Chicago Municipal Code Chapter 10-36 governs airports and empowers the Commissioner of Aviation to set operational rules.
Violations & Fines
Aircraft noise complaints are handled through the CDA noise monitoring system. Violations of airport operational rules are addressed through FAA enforcement. The city cannot directly fine airlines for noise but can impose operational restrictions through airport use agreements.
Frequently Asked Questions
Can I get free soundproofing for my home near O'Hare or Midway?
Who do I contact about aircraft noise in Chicago?
Can Chicago ban late-night flights?
Sources & Official References
Other rules in Chicago
Compare Chicago to another location·View the Illinois noise ordinances overview
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Aircraft Noise in Nearby Cities
How other cities in Cook County handle aircraft noise.