Tennessee Water & Wastewater Operator Certification Guide

Decision 1

Choose the work before choosing the exam.

Drinking water

Water treatment and distribution are separate grades. Fleming Training Center provides state-specific classes, references, and formula resources.

Treatment: source water, process control, filtration, disinfection, laboratory work.
Distribution: pumps, storage, pressure, mains, valves, sampling, flushing.

Study treatment · Study distribution

Wastewater

Wastewater treatment and collection have their own grade progressions, training references, and examination routes.

Treatment: biological and physical processes, solids, disinfection, compliance.
Collections: sewers, lift stations, force mains, I&I, cleaning, overflow response.

Study treatment · Study collections

Do not pay yet: A PSI account or payment does not replace Board approval. Keep a valid email on the state application so scheduling instructions reach you.

Decision 2

Build the application record in the right order.

Credential map: Water treatment, water distribution, wastewater treatment, and wastewater collection certifications

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Confirm the exact field and class. Ask the facility or job posting for the credential name—not simply “water license.”Open the current agency requirements. Compare education, approved training, experience, and any class prerequisites.Separate exam approval from certification approval. An application receipt or passing score may not be an active certificate.Gather records before applying. Save transcripts, course certificates, job descriptions, dates, hours, facility class, duties, and supervisor contacts.Use the current application and payment instructions. Do not mail an old form or rely on a cached third-party fee table.Schedule only after approval where required. Verify identification, calculator, formula sheet, appointment, and retest rules.Complete the certificate step. Choose field and grade; review qualifications; submit the certification exam application by the required deadline; receive Board approval; schedule with PSI; pass; finish certification and renewal actions.Record renewal and continuing-education dates. Save approved hours as you earn them.

Decision 3

Study from the state outline, then diagnose weak operator topics.

Tennessee exam note

The Board currently offers computer-based exams through PSI. PSI contacts approved applicants using the email listed on the application.

Decision 4

Make the job produce qualifying experience.

Before accepting or paying for training, ask the employer or program these exact questions:

Which certificate, class, and facility classification does this role support?
Which daily duties count as operating experience—and which duties do not?
Who will supervise and sign the experience verification?
How are hours, shift assignments, process duties, and dates recorded?
Does the employer pay for approved training, exams, renewals, or higher-grade preparation?

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Primary sources

Open the agency page before submitting or paying.

Last reviewed: July 13, 2026. State pages and current forms control if this guide differs.

Tennessee water and wastewater operator certification