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Kentucky Energy and Environment Cabinet

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Wastewater and drinking water system operators are front-line environmental professionals who ensure the quality of Kentucky's water resources and protect the public's health. Only operators that are certified by the Kentucky Certification and Licensing Branch can be in responsible charge of a wastewater or drinking water system.

Working in the water and wastewater industry can be extremely rewarding as you will be providing a critical service to your community. It just might be one of the most important positions in the world since no one can live without water. It takes knowledgeable, conscientious people to deliver clean, potable water and to ensure that wastewater is treated and returned as clean water to the environment.

Certification is obtained by meeting minimum education and experience requirements, submitting the appropriate forms and fee and by passing the certification examination. Regulations pertaining to the certification of drinking water and wastewater system operators are located in 401 KAR Chapter 11.​

The fact sheets listed below provide general guidance on how to become a certified drinking water and/or wastewater system operator:

Once an operator meets the minimum education and experience requirements, they may apply to take an examination at any of the certification preparatory courses offered across the Commonwealth or during one of the Frankfort exam events. Additional exam information and dates can be located on the Operator Training Opportunities page.

Reminder: Individuals should not apply to take an examination unless they meet the education and experience requirements at the time the application is submitted.​​

Applicants for certification must submit a Registration Form for Exams and Training as well as an Education and Experience Documentation Form. You can apply online or via paper application. Please be advised that there is an additional $50 charge for applications received via mail.

Apply Online:

  • To begin the process, establish an EEC eforms​ account. Or sign in if you already have an account.​
  • Click on Forms in the toolbar at the top.
  • Under the list of available eforms, you can click on the column header "Form Name" or "Division"​​​ to sort by that category.​
  • Click on the plus sign next to the Registration Form for Exams and Training ​form.
  • Once the application has been completed, select the Continue to Pre-Payment button. You will be directed to pay at this time. 

Paper Application ($50 additional processing fee required):

  • Fill out the Registration Form for Exams and Training as well as the Education and Experience Documentation Form which can be found in the DEP Forms Library.
  • Checks should be made payable to Kentucky State Treasurer. The total should include the exam fee, any class fee as well as the $50 processing fee.
  • Fill out the forms, and mail them along with check or money order to:
Operator Certification Program
300 Sower Blvd.
Frankfort, KY 40601​​

Once you're approved to take an exam we will send a study manual to the address provided on your application. You can also visit our test preparation page to find resources for wastewater and drinking water exams.​

​To check your Continuing Education Hours (CEUs) or renew your license, visit the Certification Renewal Information​ webpage for detailed information and resources.

​Anyone can apply for an entry-level OIT as long as they have a high school diploma or equivalent. An individual with an active certification license can apply for an OIT license that is one level higher and of the same type of certification that the individual currently holds. OITs must pass the appropriate operator certification exam and work under the responsible charge of a mentor.

To apply for the exam, individuals must submit the following to the Certification and Licensing Branch:

  • Education and Experience Documentation Form
  • Registration Form for Exams and Training
  • Appropriate fee
  • Letter from the applicant's mentor.

The letter from the mentor must include:

  • A commitment to oversee the applicant's work after the applicant becomes an OIT.
  • A commitment to mentor the applicant as long as the applicant is under the mentor's direct responsible charge.
  • Verification that the mentor is not currently mentoring any other OITs.
  • Confirmation that the mentor holds a certification license that is equal to or greater than the certification level required to serve in primary responsibility of the facility where the mentor and prospective OIT works.​​

For operators who are certified in another state but would like to attain a license in Kentucky, the certification program will consider experience earned along with the actual certification requirements of other states. Visit the Reciprocity and Equivalency​ webpage for additional information. ​​

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Need help?
Call 502-564-3170
Email kyocp@ky.gov​​


Kentucky Energy and Environment Cabinet
300 Sower Blvd
Frankfort, KY 40601

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The Kentucky Energy and Environment Cabinet does not discriminate against any person on the basis of race, color, national origin, religion, age, disability or sex. This policy protects the rights of Cabinet employees, service applicants and customers. Vendors, agencies and organizations providing services to the Cabinet or its recipients of federally-aided programs also must comply with this policy.

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