Schedule of Exams
2025 DWEE Test Dates for Wastewater Treatment Facility Operators Offered by the Nebraska Department of Water, Energy, and Environment
Updated: December 2025
We offer in-person exams listed below and on-line testing is still available at PSI Testing Centers
**IMPORTANT**
Submit the completed application and citizenship attestation forms to DWEE along with your payment by check or money order to be received no later than 30 DAYS BEFORE the testing date you plan to attend. Please contact the OnSite Administrative Specialist at 402-471-4285 to assist with any exam scheduling needs. A certificate will not be given without all documentation and payment received.
| 2026 | ||||
|---|---|---|---|---|
| Date | Time | Location | Address | Maximum # allowed |
* Exam dates with an asterisk indicate that the exam will follow a training event. Attending the training is not required to take the exam. However, professionals must apply for the training and the exam separately if they wish to participate in both.
Please review EXAM SITE policy information BELOW:
| Examination Site Policy |
|---|
| Candidates are asked to follow the facility policy regarding mask wear. |
| Photo identification required |
| Please bring a calculator (non-graphical & non-programmable) |
| Exams are closed-book |
| ABC Formula Conversion Table, scratch paper, and pencils are provided |
| No reference material is allowed into the examination site |
Examinees are forbidden to copy, record and/or otherwise take exam content material from the examination site.
Contact DWEE | ||
|---|---|---|
| Exam Coordinator | Op. Cert. Program Desk | DWEE Main Phone |
| 402-471-4244 | 402-471-4285 | 402-471-2186 |
| The DWEE is a Testing Service Partner with the Association of Boards of Certification (ABC; www.abccert.org*) and administers the Nebraska Wastewater Operator Certification using ABC customized exams. More information is available on the Wastewater Treatment Facility Operator Certification Program webpage. See ABC webpage (www.abccert.org*) for additional information and study guide references (including formula/conversion table). | ||
| Description | Current Fee * |
| Test | $150.00 |
| Retest | $125.00 |
* Fees are nonrefundable.
**IMPORTANT**
Submit the completed application and citizenship attestation forms to DWEE along with your payment by check or money order to be received no later than 30 DAYS BEFORE the testing date you plan to attend.
Make checks payable to the Nebraska Department of Water, Energy, and Environment.
Mail your completed forms and fees to:
Nebraska Department of Water, Energy, and Environment
245 Fallbrook Blvd., Ste.100
Lincoln, NE 68521
If you have questions please call the DWEE Operator Certification Program at 402.471.4244.
Forms are available from the DWEE website.
Please bring a non-programmable, non-graphical calculator to the testing site along with your photo ID.
Use of a cell phone, cell phone calculator, or any device capable of taking pictures or copying any materials during the exam is not allowed.
DWEE contracts with the Association of Boards of Certification (ABC) to provide legally defensible and nationally accredited wastewater operator certification exams. More information about ABC can be found at https://www.gowpi.org/ .