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Industrial/Commercial Wastewater Treatment Plant Operator Certification
Contact: EGLE-WRD-OpCert@Michigan.gov
Certification is offered in a variety of classifications, each relating to a unit process. Follow this link to a List of the Current Classifications and Definitions. Education and experience requirements for each of the classifications are described in the Industrial/Commercial Certification Practices.
Operators requesting only A-1a (Special Classification) or A-1h (Non-Contact Cooling Water) certification may apply throughout the year. Download the Application for A-1a and A-1h Certification, complete it, and email it to the address indicated.
- EXAM DATE: August 14, 2025
- Application Deadline Date: July 15, 2025
- We will accept applications for the August 14, 2025, exam date between May 5 and July 15, 2025. 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.
- Download the Application and Instructions - PDF for Fill-in or Printing
These Industrial/Commercial Wastewater Certification Examinations are offered twice a year in August and February. The Examination Announcement and Application for the current cycle are posted above. Also included are directions for completing the application and the qualifications for each classification. Operators may find the Examination Guide and the list of Sources of Reference Material helpful in preparing for the certification exams.
Industrial / Commercial certification is valid for 5 years from the year it is issued. In the year that your certification expires on July 1, you may apply for certification renewal beginning in January of that year. Download and complete the Renewal Application and email it to the address indicated.
If you cannot download this material, we will mail it to you. Send your name and address to EGLE-WRD-OpCert@Michigan.gov.
RULES AND REGULATIONS
Part 31 of Act 451, Industrial Rules for Industrial Wastewater Operator Certification