Regulations
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Lake Michigan Salmon and Trout Meeting - 2022/2023
Fisheries Management staff organized meetings in 2016, 2017 and 2019 to engage the public in our management of the Lake Michigan fisheries. Meetings that are planned for 2022/2023 and shown below continue that tradition. Our work with you and our…
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Trap net safety on the Great Lakes
TRAP NETS Trap nets are large underwater nets used by commercial fishers to catch whitefish and let sportfish go. They pose a potential hazard for anglers and other boaters. Downriggers, fishing lines, and propellors can get caught in the nets or…
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Landfill organic stability
The DNR, in consultation with external partners, is exploring ways to reduce the long-term risk of landfilling by reducing the time it takes for the waste in municipal solid waste landfills to become stable — that is, to reach the point when…
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Landfill siting FAQ
What are the steps in siting a landfill? A landfill siting project starts when a person, company or municipality determines that a landfill is needed within a certain area in order to serve the waste disposal needs of that area. At that point,…
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Wisconsin's landfill siting process
Landfill rule revisions effective Oct. 1The DNR has revised administrative code that regulates municipal solid waste and industrial landfills. The changes will take effect Oct. 1, 2025.
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Landfill operation FAQ
What protections exist for neighbors and the environment if a landfill is built and then starts to leak or cause other serious problems? Landfills operators are required by code to monitor groundwater, surface water and, where appropriate, air…
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Landfill gas emissions
Much of the waste placed in municipal solid waste landfills gets decomposed by bacteria, and this decomposition results in the production of landfill gas. Landfill gas that is not collected can result in landfill gas emissions. General information…
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Landfill manager and operator certification requirements
Landfills in Wisconsin must be run by certified facility managers and site operators. An applicant for facility manager certification must have at least two years of experience operating or being directly responsible for the operation, design,…
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Understanding invasive species
Wisconsin Statute Section 23.22 (1) (c) defines invasive species as "nonindigenous species whose introduction causes or is likely to cause economic or environmental harm or harm to human health." Humans move organisms around all the time.…
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Invasive Species Rule – NR 40 terminology
Prohibited Invasive species that are not currently found in Wisconsin, with the exception of small pioneer stands of terrestrial plants and aquatic species that are isolated to a specific watershed in the state or the Great Lakes, but which,…