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DEQ Recertification

Following initial certification, DEQ requires Installer and Maintenance Provider recertification every three years.

Keep Your DEQ Certification Current

Chemeketa will recertify onsite system installers and maintenance providers who –

  • Complete 18 hours (1.8 Continuing Education Units, CEU’s) of approved continuing education following their most recent certification or within six months after their certification expires
  • Chemeketa will provide recertified persons a serial-numbered, laminated certification card

Notification of Expiration

Prior to initial certification expiration, Chemeketa send a courtesy notification (to the address Chemeketa has on file) that your initial certification will be expiring. This letter will include instructions on how to find Continuing Education and the recertification process, including documentation to demonstrate that you have received 18 hours of continuing education.

  • You are responsible for keeping track of your course completion certificates
  • You are responsible for notifying Chemeketa of any address changes

Approved Classes

The Oregon Environmental Services Advisory Council (OESAC) approve classes listed on their website. If you want to see if a course you have taken will qualify for recertification, view the list of OESAC approved courses.  If you or your organization are holding, or have held, a class that you would like to be evaluated for qualification toward recertification you must submit an application to OESAC.

Navigating OESAC website to find courses:

Go to the OESAC website ( above) to find all courses they provide.  
Click the second box in the upper left that says, "All CEUs".  
Click the dropdown menu, and select "Onsite".  
Click the green “Go” button toward the upper middle of the page.  
Note the courses in the "OnsiteInstall" and "OnsiteOandM" category.  
Find courses that show numbers above zero in the appropriate category, these courses are approved for CEUs for your certification.  
Find courses that make sense for learning you would like to do.  Click on the blue link to the course on the left.  
Find the email address or phone number on that page to connect with the course provider to get set up for the chosen course.  
The easiest way to set up the class or classes you choose is to call the vendor or email them from the address or phone number that is listed in the 3rd column after you click the blue link.

If you have questions about the requirements of the Initial DEQ class, and your status regarding the course and testing requirement, please check out the DEQ website.

Please also refer to the DEQ website for an updated list of certified Installers and Maintenance Providers that includes certification expiration dates.

Oregon Onsite Wastewater Association (O2WA)

O2WA's mission is to give a voice to members of all disciplines and trades, to encourage the free exchange of ideas, to upgrade skills through education and training and to promote the development of new and improved practices, policies and uniform standards. O2WA deals with pertinent issues in the Onsite industry and also provides a quarterly newsletter to all members that often contain availability of upcoming training resources. Installers and Maintenance Providers are not required to become a member of O2WA, however, this organization is a source of information for onsite professionals and continuing education courses. Learn more about O2WA.  O2WA has provided the curriculum for these septic classes.

Recertification Forms

If the submission form is lost or not received please request a form by emailing Program Coordinator JD Shinn ( so you can submit it with your Continuing Education Certificate(s) of Completion.

Once you have the completion certificates and have attained 18 hours (1.8 CEUs) send the certificates to with a copy of your current certificate and where to reach you for the $60 administrative fee payment.  Or mail copies of the documents, including a copy of your current certification card, with a check to: 


Attn: Installer CEUs

626 High St. NE Suite 210

Salem, OR 97301