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Operator certification program

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In-Person Paper Exams: 

The Operator Certification program will be hosting a few in-person exam sessions in 2023. Exams will be held in May in Plover and in June in Rhinelander and Rice Lake. Exam application forms and more information about the in-person paper exams can be found on the Operator Certification Exams Page under the DNR Applications tab.

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 selecting the appropriate link.

Operator certification lookup website

Operator certification lookup

Do you need to

  • 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.