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International Union of Operating Engineers: Local 399
education.jpg2024 Spring Class Schedule Now Available!

Chief Engineers Association Generator Operator Class

The Chief Engineers Association of Chicago is offering a Generator Operator Certification Class on Saturday, March 2, 2024

Click here for Details

Testing and Licensing




The City of Chicago now uses Continental Testing Services to
perform Staionary Enigneer Exams, Licensing and License Renewals

Please click here to view F.A.Q.'s for City of Chicago
trade licensing information


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Click here to view Continental Testing Services homepage

Click here for Trade Licensing Renewal Information

Click here to view City of Chicago
Stationary Engineers Exam Schedule

Click here to view City of Chicago
Stationary Engineers online exam application

Click here to view Stationary Engineers Licensure
Exam Study Guide

Click here to view your application status and grades