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Testing, Renewal and Training Event Information

For the time being we are continuing to register people for exam events.  Please note that our ability to hold exams will be contingent upon COVID-19 conditions.

Our testing events will continue to be small with a limited number of operators. Testing slots are on a first-come, first-served basis. The training and exam calendar can be found here.

Registering for Exams

As we are unable to provide in-person training, we will be providing our training course material online for those registering for testing.  At this time, we are offering this at no additional charge.  So, you will only pay the exam fee.

When you register, register for the exam only

A link to the training materials will be provided to you in your notification email. 

Math study guides are now available on our test preparation page.

Renewal Deadline:

Wastewater: The wastewater renewal deadline is June 30, 2021. This deadline will not be extended. Licenses submitted for renewal after the June 30th deadline will incur a late fee.

Inactive Renewal: For operators who are retired and no longer actively using their license at a facility or in support of water or wastewater operations, there is inactive license renewal option of $100. An operator holding this license does not have to seek CEUs to renew. However if they wish to go back to using their license, they will have to seek the required CEUs and pay the difference in the licensing fees to reactivate the license. This type of license renewal will have to be submitted through the mail by completing the Application for Certification Renewal Form. There will be an electronic process available in the future. Until the electronic process is available, the cabinet will waive the additional paper submittal fee.

Live Training Events: 

The division will not be offering in-person classes at this time.  A decision on offering in-person classes will be made later in the year. For the time being, anyone that registers for an exam will be allowed access to the recorded certification courses free of charge. After registration, the division will send each operator a link to the on demand classes. Please make sure your email address is up to date with us as the links will be sent there.

CEU Classes:  

DCA is now offering wastewater treatment and collection online CEUs. You can register for these classes on eSearch. The training and exam calendar can be found here.

A list of approved training providers and courses for continuing education can be found on our Training Provider Information page. Many of these providers have online options.


Where can I locate a copy of the Registration Form for Exams and Training?

All forms necessary for the application, registration and renewal of drinking water and wastewater operator certification are available on the forms library. ($50 additional processing fee is required for paper applications.)


Are there materials available to help me prepare for the exam?

Yes, check out the test preparation page to find materials to aid you in preparing for drinking water, wastewater and solid waste exams. 


Are there continuing education requirements for each certification level?

Certified treatment, distribution, collection and bottled water operators must complete a minimum number of continuing education hours in order to renew their licenses.

Certification Level
Continuing Education Hours Required
Limited (only available for operators working for a school water treatment plant or for a semipublic water supply; or for operators working for a school wastewater treatment plant and collection system.
12 hours
Class I and Class II
12 hours
Class III and Class IV
24 hours
Class I-OIT and Class II-OIT
12 hours
Class III-OIT and Class IV-OIT
24 hours