Regulations
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Concentrated animal feeding operations WPDES permits
What is an “animal unit”? “Animal units” (AU) measure equivalencies between animal types as established by s. NR 243.05, Wis. Adm. Code [exit DNR] and the CAFO WPDES permit program. For example, 1,000 beef cattle, 715 milking cows or 200,000…
- Webpage
Trapping Regulations
A summary of Wisconsin's trapping laws and how they affect you is contained in the pamphlets listed below. 2024-25 Wisconsin Trapping Regulations February 2021 Wolf Hunting And Trapping Regulations
- Webpage
Wastewater operator certification
A "certified operator" is an individual who has met the requirements of Chapter NR 114, Wisconsin Administrative Code, and has been issued a certificate by the DNR to operate one or more of the classifications of wastewater treatment plants.
- Webpage
Small water system (OTM/NN) operator certification
Small water system operators work at an "other than municipal" (OTM) community water system or a non–transient non–community (NN) water system. OTM systems serve groups of 25 or more year-round residents; they can include mobile home parks,…
- Webpage
Septage business license requirements
All septage businesses in the State of Wisconsin that service and/or dispose of septage (septic tanks, holding tanks, sanitary grease interceptors, portable restrooms, privies, etc.) shall be licensed pursuant to ch. NR 113, Wis. Adm. Code.…
- Webpage
Septage servicing operator certification
All septage businesses in the State of Wisconsin must designate a master operator to serve as operator-in-charge (OIC). The OIC is directly responsible for the operation of the septage servicing business (reference: sub. NR 114.153(5), Wis. Adm…
- Webpage
Operator certification program
About the program The program is responsible for ensuring that various types of professional operators have adequate training to perform the necessary tasks at their facilities or businesses. Review certification and licensing requirements by…
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Waterworks operator certification
Municipal waterworks operators work at community water systems that are owned by, or serve, a city, town, village, county or other municipality. Also included in this definition are county or state-owned public institutions for congregate care or…
- Webpage
Landfill operator certification
Chapter NR 524, Wisconsin Administrative Code was created as authorized by ss. 289.06, 289.42, and 227.11 (2), Wis. Stats., which contain the requirements for the department to develop a program of certification for persons participating in, or…
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Incinerator operator certification
Wisconsin Administrative Code ch. NR 499 was created as authorized by ss. 285.51, Wis. Stats., which establishes a program for the department to develop a program of certification for persons participating in, or responsible for, the operation of…