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Water and Domestic Wastewater Operator Certification Program

Announcements & Special Information

PSI Test Center Closure Information

Get the most up-to-date information on test center closures and exam rescheduling.

PSI's New Phone Number

Due to the HIGH call volume on the current PSI Customer Care General line, PSI has established a new phone number dedicated just for Florida candidates. The wait time for the new number should be much shorter and candidates will be able to talk to a representative much sooner.  If you choose to reschedule through PSI’s Candidate Call Center, please call the new number at 855-557-0617.  Call Centers are open: 8:30 a.m.- 11:00 p.m. EDT M-F and 10:00 a.m.- 6:30 p.m. EDT Sat-Sun

All Operator Certification Program exams are administered via Computer Based Testing (CBT) through our testing vendor PSI.  Once you receive an examination approval letter from the Department of Environmental Protection (DEP), you may go to or call 855-557-0617 to schedule your exam.  For more detailed scheduling information, please review the Candidate Handbook located on the PSI’s website.

California State University Sacramento (CSUS) Course Change

Beginning September 20, 2019, CSUS has dramatically changed their enrollment of the Operation of Wastewater Treatment Plants Volume I.  The new Operation of Wastewater Treatment Plants Volume I is now divided into three separate enrollments.  Operation of Wastewater Treatment Plant Volume I still consists of only one book. However, completion of all chapter trainings are broken out into three enrollments (Enrollment “A”, Enrollment “B” and Enrollment “C”).  A student must complete all three enrollments (A, B and C) in order to meet the FDEP requirements for completion of Volume I.

There is no change to the Operation of Wastewater Treatment Plants Volume II.  And as a reminder, certificates of completion for both volume I and II are required to sit for the Wastewater Treatment Plant Operator Class C exam.

Attention! GED Program

The Florida Department of Environmental Protection, Operator Certification Program, accepts only General Educational Development (GED) issued by the American Council on Education through an approved GED administrator. In Florida, the approved GED administrator is the Florida Department of Education through its network of public schools and adult education centers. (Please note: Depending on your location, some testing centers are paper or computer based. Enter your zip code under Testing Center Information.)

Attention! You may now apply for your re-examination online!


  • CEU Requirements - If you have not completed your required amount of continuing education, you should begin making arrangements now! Please do not wait until the last minute when all classes are full and unavailable. You may search the status of your CEUs.
  • CEU Splitting - Please note that the splitting of CEUs is no longer allowed. An example of this would be a management course worth 4.0 CEUs. These CEUs cannot be split into 2.0 for water and 2.0 for wastewater if you are dually licensed. If you have any questions regarding this, please call the Operator Certification Program at 850-245-7500.

You may now renew your license online and pay with your credit card. It’s fast and simple. In addition to using this site to renew your license, you may also check the status of your license(s) and CEUs and verify your current mailing address. All you need is your pin number which is printed on the renewal notice that was mailed to you. Your employer may also use this site to renew your license(s) with the company credit card. Once your license has been renewed, we will mail your license to you within 4 to 5 weeks.

Licensing Process

Florida statutes require anyone who operates a drinking water treatment plant, domestic wastewater treatment plant and/or water distribution system must be licensed by DEP. To qualify for licensure, an applicant must meet minimum educational and work experience requirements for each class of license. A passing score is required on the exam for the type and level license desired.

Step 1: Apply for Exam - I have completed my approved training course and I am ready to take my exam.

  • Examination Information – Applications, Deadlines, Fees, Locations, Handbooks and Reference Material.
  • Veteran Services – The Department of Veteran Affairs offers reimbursement of fees associated with professional licensure exams to qualified veterans. Please contact them for more information.

Step 2:  Apply for License - I have taken and passed my Florida exam and I am ready to get my license.


Need further assistance or information regarding the program?

Operator Certification Program
Division of Water Resource Management
2600 Blair Stone Road, MS 3506
Tallahassee, FL 32399-2400
Phone: 850-245-7500  FAX: 850-245-8410
Last Modified:
February 9, 2021 - 2:23pm

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