Wyoming, MI Outdoor Lighting: Dark Sky Rules (2026)

Sec. 90-1311 of the City of Wyoming Form Based Code, part of the general provisions applying to every FBC context area along 28th Street, Division Avenue, Crescent Street and Burton Street, sets the city's dark-sky standard for exterior site lighting. Subsection (a)(1) requires lamps and luminaires to be shielded, hooded and/or louvered so the light source is not directly visible from beyond the site's boundary and so glare does not spill past the property line or any public right-of-way. Subsection (a)(3) adds a fixture-design mandate: lighting must have 100 percent cutoff above the horizontal plane at the lowest point of the light source, light rays cannot be emitted above the horizontal plane, and no fixture may be mounted higher than 25 feet above the average grade of the site.

The same subsection (a) excludes flag and decorative lighting from the shielding requirement but still confines all exterior lighting to the development site. Adjoining subsections in the same standard bar blinking, flashing or fluttering lighting and beacon or search lights (a)(4), and prohibit colored lights that could be mistaken for traffic control devices (a)(5). Compliance is checked as part of the sketch plan or site plan review the city planner conducts for development in the FBC context areas, the same review process that governs building type, frontage and outdoor seating standards in the same Division 3.