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Exam applications

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Environment, Great Lakes, and Energy

Exam applications

Classifications and Licenses

Exams

Exam Date(s)

Postmark Deadline(s)

F 1-2-3-4, D 1-2-3-4, and S 1-2-3-4
(Paying by check or credit card)

May 6, 2026

November 4, 2026

March 6, 2026

September 4, 2026

S-5, D-5, and F-5
(Paying by check)

May 6, 2026

November 4, 2026

March 6, 2026

September 4, 2026

S-5, D-5, and F-5
(Paying by credit card)

May 6, 2026

November 4, 2026

April 6, 2026

October 4, 2026

F - Complete Treatment, Levels 1-5
D - Limited Treatment, Levels 1-5
S - Distribution, Levels 1-5

The U.S. Postal Service postmark or a postmark from an independent delivery service (U.P.S., Federal Express, DHL, etc...) will be used to verify that the application has met the deadline for submission.  Postmarks by private meter stamps (such as Pitney Bowes) cannot be used as proof of meeting the deadline.

These forms and their contents are subject to the Freedom of Information Act and may be released to the public.

Applications

Safe Drinking Water Act 399

All of the classifications and criteria are explained in the rules and statutes of the Safe Drinking Water Act 399.

R 325.11901 - 325.11918

Supplying Water to the Public - Part 19 Examination and Certification of Operators