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Operator certification program

March 20, 2020: Important notice

In response to the COVID-19 pandemic and Governor Evers' Executive Order #72 declaring a public health emergency, DNR is currently evaluating continuing education, certification/license renewal and exam requirements for ch. NR 114, Wis. Adm. Code, drinking water, wastewater, septage, landfill and incineration operators, as well as ch. NR 146, Wis. Adm. Code, licensed well drillers and pump installers. More detailed information about program requirements during the public health emergency will be available in coming weeks.

The DNR is pursuing the legal process to temporarily suspend ch. NR 114, Wis. Adm. Code, requirements and intends to provide significant flexibility in allowing for operators to complete their critical public health work without being burdened by certification renewal and continuing education requirements at this time. Please check the respective DNR program webpages for new information and reach out to your DNR facility contact if you have any questions or concerns. The DNR greatly appreciates your efforts for completing critical public health work during this challenging time.

The operator certification 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 selecting the appropriate link.

Operator certification lookup website

Do you need to...

operator certification lookup button
  • View an operator's training history report?
  • Print a wallet card?
  • See which certifications an operator holds?

Operator certification

Madison Wastewater Treatment Plant

Madison Wastewater Treatment Plant
Photo credit: Danielle Luke, Wisconsin DNR

Business licensing

Wisconsin administrative codes

The following Wisconsin administrative codes establish and are implemented by the Operator Certification Program.

Last revised: Friday March 20 2020