Decibel Limits: Des Plaines vs Oak Lawn
How do decibel limits rules compare between Des Plaines, IL and Oak Lawn, IL?
Des Plaines and Oak Lawn have similar restriction levels.
Des Plaines, IL
Cook County
Des Plaines' noise ordinance under Title 6, Chapter 6 relies primarily on a plainly-audible and reasonableness standard rather than fixed dBA limits. Measured decibel enforcement between zoning districts follows Illinois Pollution Control Board rules (35 Ill. Adm. Code Parts 900–901).
View full Des Plaines rules →Oak Lawn, IL
Cook County
Oak Lawn relies primarily on a plainly-audible standard for residential noise enforcement, with numerical decibel limits applying to commercial and industrial sources under Illinois Pollution Control Board rules. State limits at residential property lines are roughly 61 dBA daytime and 51 dBA nighttime (10 PM–7 AM) in octave-band equivalents.
View full Oak Lawn rules →Key Facts Comparison
| Fact | Des Plaines | Oak Lawn |
|---|---|---|
| Local Standard | Plainly audible / reasonableness | - |
| IPCB Daytime Limit | 61 dBA (to residential) | - |
| IPCB Nighttime Limit | 55 dBA (to residential) | - |
| Vehicle Noise | 625 ILCS 5/12-602 | - |
| Fine Range | $75–$750 | - |
| Residential Standard | - | Plainly audible |
| Daytime (state) | - | ~61 dBA at property line |
| Nighttime (state) | - | ~51 dBA (10 PM–7 AM) |
| Meter Type | - | Type 2 or better |
| Contact | - | (708) 636-4400 |
Highlighted rows indicate differences between cities.
Des Plaines FAQ
Does Des Plaines have specific decibel limits?
Des Plaines' local ordinance uses a plainly-audible and reasonableness standard rather than fixed dBA limits. Measured enforcement follows IPCB rules: 55 dBA night and 61 dBA day at residential boundaries.
Do Des Plaines Police use sound meters?
Officers may use a calibrated sound-level meter for recurring industrial or commercial disputes, but most residential noise complaints are handled under the audibility standard.
What is the fine for exceeding noise limits in Des Plaines?
Local violations carry fines of $75 to $750 per occurrence. State IPCB violations face higher penalties enforced by the Illinois EPA.
Oak Lawn FAQ
Does Oak Lawn have a specific dBA limit for residential noise?
No. Oak Lawn uses a plainly-audible and reasonableness standard for residential noise rather than specific decibel limits.
What dB limit applies to commercial property in Oak Lawn?
State IPCB rules cap commercial/industrial noise at approximately 61 dBA daytime and 51 dBA nighttime at residential property lines.
Will Oak Lawn Police measure decibels at my noise complaint?
Not typically. Residential complaints are assessed by the plainly-audible test. Formal dB measurements are reserved for industrial/commercial IPCB cases.
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