Getting started
Industrial/commercial wastewater classifications are associated with the waste treatment occurring at the facility as Physical (A), Chemical (B), and/or Biological (C). Sub-categories for classifications are identified as Level 1, 2, or 3 and those levels correspond with the amount of education required for that classification. Education and experience requirements for each of the classifications are further described in the Industrial/Commercial Certification Practices document.
Industrial/commercial wastewater certification examinations are offered twice a year in August and February in four locations throughout the state.
New Information: If you are certified or have applied for an exam, locate your Wastewater or Drinking Water Operator Profile ID before proceeding any further. To connect MiLogin account to your certificates you will need to have exact match of first name, last name, and Operator ID of what is in our system. If there are any changes to your name needed before connecting accounts contact OpCert.
If you are new to the OpCert program, create a new account.
Applications will be submitted through the OpCert database system.
Guidance documents will be available when application window is open.
Current Submission Timeline
- For the February 11, 2027, exam the application opens on November 2, 2026, and the deadline is January 11, 2027.
- For the August 12, 2027, exam the application opens on May 10, 2027, and the deadline is July 12, 2027.
Application submittal
Application submittals will be submitted through the Operator Portal - EGLE OpCert Database.
ADA Accommodations are available. Please explain thoroughly in application.
We will not be accepting applications outside the database.
Exam notification letters are mailed 2-3 weeks before the exam and the draft preliminary letters will be available in the portal upon staff approval. Please read your acceptance letter to verify the exam location and the exam time.
Please submit your application as soon as possible within the application timeline. The earlier you submit your application, the more likely it is that staff can provide adequate feedback if you are missing information.
Please submit your application as soon as possible within the application timeline. The earlier you submit your application, the more likely it is that staff can provide adequate feedback if you are missing information.
An incomplete application may be denied at any point during the application cycle; however, it is much more likely for staff to review and retrieve missing information to complete your application the earlier you apply.
- Formula Sheet
- Operators may find the examination guide helpful in preparing for the certification exams.