Florida Water & Wastewater Operator Certification Guide

Decision 1

Choose the work before choosing the exam.

Drinking water

Drinking water treatment licenses progress from Class C toward B and A. Water distribution applicants begin at Level 3 before advancing to Levels 2 and 1.

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

Study treatment · Study distribution

Wastewater

Domestic wastewater operators generally begin with Class C, then advance as they meet higher-level experience and licensing requirements.

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: Florida separates “passed the examination” from “licensed.” Keep your exam result, course completion, and experience verification together.

Decision 2

Build the application record in the right order.

Credential map: Drinking water treatment and domestic wastewater Classes C, B, and A; water distribution Levels 3, 2, and 1

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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. Pick treatment, distribution, or wastewater; complete the approved course; apply for the correct exam; pass; gain/document required experience; then apply for licensure.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.

Florida exam note

Use FDEP’s current examination application overview and subject-area material. Higher examinations may require the lower license first.

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.

Florida water and wastewater operator certification