Construction hours in Flint, MI — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Flint Code Section 31-77(f) exempts the erection, excavation, demolition, alteration or repair of any building from the Article II dBA caps between 8:00 a.m. and 8:00 p.m. on weekdays only. Work outside that window requires a permit from the Department of Building and Safety Inspection, issued under Section 31-77(f)(2) on public-health-or-safety, no-impairment, or substantial-loss-or-inconvenience findings.
Construction noise in Flint sits inside the Article II framework with a specific carveout. Section 31-77(f) provides that the Article II prohibitions do not apply to building erection, excavation, demolition, alteration or repair (1) between 8:00 a.m. and 8:00 p.m. on weekdays, or (2) at any other time if a permit has been issued by the Department of Building and Safety Inspection. The Department issues the permit if it finds the issuance serves public health or safety, that public health and safety will not be impaired, or that the permit is necessary to avoid substantial loss or inconvenience. Weekend and overnight work without a permit is subject to the Section 31-78 penalty schedule. Section 31-71 defines CONSTRUCTION as any site preparation, assembly, erection, substantial repair, alteration, or similar action - DEMOLITION is separately defined and falls under the same exemption rule.
Construction work outside the 8:00 a.m. to 8:00 p.m. weekday window without a Building and Safety Inspection permit is a Section 31-78 violation: up to $1,500 fine, 90 days jail, or both. A $25 waiver fine is available for a first-offense plea at the District Court Clerk under Section 31-78(b). Each day of unpermitted off-hours work is separately chargeable.
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See how Flint's construction hours rules stack up against other locations.
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