Rock County has no general dark-sky lighting ordinance, and neither does the City of Janesville. Outdoor lighting is mainly addressed through zoning conditions and shoreland standards, not a county-wide dark-sky code.
There is no county-wide dark-sky or light-pollution ordinance in Rock County, and Wisconsin sets no statewide residential lighting standard. The City of Janesville has lighting standards for commercial development's impact on nearby homes but no general dark-sky ordinance. Where lighting is controlled, it is usually through conditional-use permit conditions in zoning (requiring shielded, downcast fixtures) or through mandatory shoreland zoning that limits lighting near lakes and streams. For a routine residential yard light, expect no county dark-sky rule; a persistent glare problem is handled as a private nuisance or under any local ordinance your town or city has adopted.
With no dedicated dark-sky ordinance, enforcement is limited to zoning permit conditions or nuisance remedies rather than a fixed county fine.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Janesville, WI
Janesville regulates amplified music under the general noise ordinance. Sound amplification permits available for events. WI Stat. §947.01 applies.
Janesville, WI
Janesville considers excessive barking a nuisance. Animal control handles complaints. WI Stat. §174 covers dog regulation statewide.
Janesville, WI
Janesville enforces quiet hours as the Rock County seat (pop. 65,000). The former GM assembly plant city on the Rock River manages noise from remaining indus...
Janesville, WI
Janesville manages parking around the courthouse square, downtown, and Rock River recreation areas. Winter alternate-side parking enables efficient snow plow...
Janesville, WI
Janesville restricts commercial vehicle parking in residential zones. Weight, size, and signage limits apply. Overnight heavy truck storage prohibited.
Janesville, WI
Janesville requires vehicles parked on improved surfaces. Front lawn parking prohibited. Driveway modifications require permits.
See how Janesville's dark sky rules rules stack up against other locations.
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