Wyoming, MI Outdoor Lighting: Billboard Lighting (2026)
Key Facts
- Brightness ceiling
- 0.2 foot candles above ambient
- Dimming
- Automatic dimming controls required
- Initial certification
- Third-party required before use
- Retest deadline
- 15 days of city's written request
- Certification validity
- 90 days
Summary
Wyoming, Michigan caps every digital billboard's light output at 0.2 foot candles above ambient light and requires automatic dimming hardware to hold it there. Sec. 90-709(8)(f)-(i) makes billboard owners certify compliance through an independent third party up front and, on the city's request, resubmit a test report within 15 days, valid for only 90 days.
(f)Maximum brightness of an EMC shall not exceed 0.2 foot candles above ambient light.(g)All signs regulated under this section shall possess and utilize automatic dimming controls set to automatically adjust to the limits defined in this section.(h)Owners of signs regulated under this section shall submit an initial third-party certification for each sign verifying the sign is equipped with a sensor or other device that automatically determines the ambient light and is programmed to automatically adjust according to ambient light conditions, and that the sign is programmed to comply with the 0.2 footcandle measurements.(i)Sign owners shall, at the city's request, provide a report from a third party testing agency documenting that the light emitted from the sign meets the minimum illumination standard defined in this section. The certified report shall be submitted within 15 days of the written request from the city. A certified report is valid for a period of 90 days.
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. 90-709(8) of the Wyoming Code of Ordinances sets the light-output ceiling for electronic message signs (EMCs) mounted on off-premises billboards. 2 foot candles above ambient light, the glare threshold used to keep an illuminated billboard from washing out a driver's night vision. 2 foot-candle limit as ambient light changes through the day and night. Sec. 2 foot-candle ceiling. Sec. 90-709(8)(i) keeps that certification alive after installation: at the city's request, the owner must produce a fresh report from a third-party testing agency documenting the sign's actual light output within 15 days of the written request, and any report the owner submits is only good for 90 days before it needs retesting.
Sec. 90-709(8)(j), just past this brightness block, requires every regulated sign to default to a static, non-moving display automatically if it suffers a mechanical failure, so a malfunctioning digital billboard cannot flash or freeze on an overly bright frame.
Violations & Fines
A billboard operating above the 0.2 foot-candle ceiling, lacking automatic dimming controls, or missing its third-party certification is enforced under Sec. 90-711 as a code violation; the building official can demand a compliance report within 15 days of written request, and failure to certify or correct the brightness lets the city order the sign repaired or removed at the owner's cost.
Frequently Asked Questions
How bright can a digital billboard be in Wyoming, MI?
Does the city verify billboard brightness after installation?
What happens if a digital billboard malfunctions?
Sources & Official References
Other rules in Wyoming
Compare Wyoming to another location·View the Michigan outdoor lighting overview
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Billboard Lighting in Nearby Cities
How other cities in Kent County handle billboard lighting.