Wyoming, MI Noise Ordinances: Decibel Limits (2026)
Key Facts
- I-1/I-3 residence boundary
- 55 dB(A) daytime
- I-1/I-3 business boundary
- 62 dB(A) daytime
- I-2 residence boundary
- 61 dB(A) daytime
- I-2 business boundary
- 66 dB(A) daytime
- Nighttime reduction
- 7 dB lower, 10 p.m.-7 a.m.
- Construction sites
- Governed separately, § 30-102(4)
Summary
Wyoming, Michigan caps plant noise at industrial-district boundaries: I-1 and I-3 districts hold to 55 dB(A) at a residential line and 62 dB(A) at a business line by day, I-2 districts to 61 and 66 dB(A), and every limit drops 7 decibels between 10:00 p.m. and 7:00 a.m.
In I-1 light industrial zoning districts and I-3 restricted industrial zoning districts, at no point on the boundary of a residence, business or commercial district shall the sound pressure level of any individual operation or plant, or the combined operations of any person, firm or corporation, exceed the decibel levels in the designated octave bands shown below for the zoning districts indicated... For monitoring purposes, the A scale levels (slow response) of 55 dB(A) and 62 dB(A) respectively for residence and business-commercial districts may be used. Any noise levels in excess of these values constitute a violation of this subsection. Maximum nighttime sound pressure levels (10:00 p.m. to 7:00 a.m.) are to be 7 dB lower than the values shown for daytime steady noise for each octave band center frequency.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 26 Update 2).
Full Breakdown
Sec. 30-102(12) and (13) of the Wyoming, Michigan Code of Ordinances set octave-band sound-pressure ceilings measured with ANSI- and SAE-standard equipment. In I-1 light industrial and I-3 restricted industrial districts, no operation may exceed the octave-band levels the ordinance tables list at the boundary of a residence, business or commercial district; for monitoring purposes the code allows using A-weighted screening levels of 55 dB(A) at a residential boundary and 62 dB(A) at a business/commercial boundary, with the fuller octave-band test required only if a reading falls below those numbers.
In I-2 industrial districts the boundary limits rise to 61 dB(A) residential and 66 dB(A) business/commercial, measured at the district line or 125 feet from the plant's property line, whichever distance is greater. Repetitive impulse noise must run 10 dB below the steady-noise figures in both districts. , for each octave band. The same performance standards apply at the lot line of business/commercial uses under subsection (14) and of residential uses under subsection (15), but subsection (16) states they do not apply to construction sites, which are instead governed by the separate 600-foot construction curfew in subsection (4).
Violations & Fines
No special fine appears in this section, so the citywide default in Sec. 1-27 applies: $75 for a first municipal civil infraction, $500 for a second within a year, and $2,500 for a third, with each day of an exceedance a separate offense.
Frequently Asked Questions
What is the daytime noise limit at an industrial property line in Wyoming, Michigan?
Are the limits stricter for I-2 industrial land?
Do these decibel limits get stricter at night?
Do the decibel tables apply to a construction site?
Sources & Official References
Other rules in Wyoming
Compare Wyoming to another location·View the Michigan noise ordinances overview
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Decibel Limits in Nearby Cities
How other cities in Kent County handle decibel limits.