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Operator Certification

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2024 In-Person Paper Exam: 

The Operator Certification program will be hosting in-person exam sessions in 2024. Exams will be held throughout the state roughly two days each month beginning in March 2024. Once dates and locations are finalized, more information about the in-person paper exams and updated exam application forms can be found on the Operator Certification Exams Page under the DNR Applications tab within the DNR In-Person Paper Exam Application Forms subsection.

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 at the following pages.


Exam information, schedule and applications

Operator Certification Lookup

Look up by name or number, view training history, certifications and print card


Training calendar, information for operators and providers


Water, wastewater, septage and landfill