Operator Certification

Qualified and well-trained Drinking Water and Wastewater operators play a vital role in drinking water quality. The Water Supply Operations Section is responsible for certifying Public Water Supply Treatment and Distribution Operators, as well as Wastewater Treatment Operators as prescribed by Chapter 81 of the Iowa Administrative Code (IAC). The purpose of the Operator Certification program is to ensure that water and wastewater operators have sufficient knowledge and experience to properly operate the system, in turn protecting human health and the environment.
Public View   Online Operator Certification Process  
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What is the Operator Certification Examination Process?
    • You can submit an Eligibility Exam Application.
    • You can process your Renewal Application.
    • You can submit payment for exam, retest, certification, and renewal fees.
    • Exams are administered in the regional DNR field offices by appointment.


Create an account or log in to apply exam online/pay for certification/register affidavit
**NOTE** As of January 31, 2023 the Operator Certification System no longer uses the IowaId (A&A account). When creating your account please use your email address and not your IowaId. If you have started the process but not verified within 24 hours, the verification link will no longer work. If that happens call the helpdesk at 515-281-5703.

** Notice** if you have not logged into this Web site after (January 31, 2023) you must create a new account.
Federal and State law prohibit discrimination on the basis of age, color, creed, mental and/or physical disability, gender identity, national origin, pregnancy, race, religion, sex, or sexual orientation. If you believe you have been discriminated against in any program, activity or facility as described above, or if you desire further information, please contact the Iowa Civil Rights Commission at 1-800-457-4416 or DNR’s Civil Rights Coordinators at civilrights@dnr.iowa.gov.
* Applications that are not completed within 30 days of the create date will be deleted