Missouri · Water & Wastewater Operators · 2026 renewal guide
How to Renew Your Missouri Water & Wastewater Operator License
Missouri water & wastewater operators must complete 30 hours of board-approved continuing education every 3 years, as required by Missouri Department of Natural Resources - Operator Certification Section.
Written by the TradesCE compliance team · Verified against the Missouri Department of Natural Resources - Operator Certification Section rule on September 4, 2026.
- CE hours
- 30 hours
- Renewal cycle
- Every 3 years
- Next deadline
- Per license
- Exam to renew
- Not required
Who has to renew
This guide covers Missouri water & wastewater operators holding a All licensees license. Requirements are set by Missouri Department of Natural Resources - Operator Certification Section.
When to renew
Missouri water & wastewater operators licenses renew every 3 years, on the schedule your board assigns to your license. Continuing education must be complete before you submit the renewal. (https://dnr.mo.gov/document-search/drinking-water-treatment-operator-certification-pub2185/pub2185)
The continuing education Missouri requires
Missouri Department of Natural Resources - Operator Certification Section requires 30 hours of approved continuing education every 3 years. The board does not mandate specific topics beyond the approved-course requirement.
How to renew, step by step
- 1
Confirm your license class and renewal date
Missouri sets water & wastewater operators requirements by license class (All licensees). Check the class printed on your license, then note your renewal date — renewals run the schedule your board assigns to your license.
- 2
Complete 30 hours of board-approved continuing education
Missouri Department of Natural Resources - Operator Certification Section requires 30 hours every 3 years. Do not leave it for the last week — completions must be on file before the deadline.
See the Missouri water & wastewater operators course - 3
Save your certificate of completion
Download the certificate the moment you finish and keep it with your license records.
- 4
Make sure your hours reach the board
In Missouri, you keep your certificate and attest to completion when you renew; the board may audit.
- 5
Renew with Missouri Department of Natural Resources - Operator Certification Section
Submit your renewal through the board’s online portal and pay the renewal fee before the deadline. A late renewal usually means a late fee, and a lapsed license can mean re-applying from scratch.
Go to Missouri Department of Natural Resources - Operator Certification Section
Missouri water & wastewater operator renewal FAQ
- How many continuing education hours do Missouri water & wastewater operators need?
- Missouri water & wastewater operators must complete 30 hours of board-approved continuing education every 3 years, as set by Missouri Department of Natural Resources - Operator Certification Section.
- Can Missouri water & wastewater operators complete continuing education online?
- Yes. Board-approved online courses count toward the Missouri requirement; timed seat-time and completion records satisfy audit requirements.
Sources
- Missouri Department of Natural Resources - Operator Certification Section — official board site
- Continuing education rule — the requirement cited above, verified September 4, 2026
- Missouri Water & Wastewater Operators continuing education requirements — hours, topics and courses by license class