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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Exam Schedule

You must have a Letter of Admission to take the wastewater operator examination. The Examination Request for Wastewater Operator Certification must be submitted for a Letter of Admission to be issued. To insure proper processing, it is important that all of the requested information on the form is correctly completed and is submitted to the Operator Certification Unit at least 30 days prior to the desired examination date.

Note: Space constraints limit the number of persons we can schedule at each examination location. Thus, the earlier you apply, the better chance you have to be scheduled for your choice of examination location and date.

2024 Exam Schedule

2024 Examination Schedule

Forms