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Due to system maintenance, the Skilled Trades Ontario Portal and the Public Register may experience possible service interruptions from 7:00 p.m. on March 26th to March 27th, 2026, at 2 a.m. We apologize for any inconvenience.

There are many resources available to help you prepare for your certifying exam. First, you will need to be familiar with your Apprenticeship Training Standard. Other preparation resources include preparation courses, sample exams, study guides, materials and various texts. You can also use your own network of support by speaking to your employers, previous instructors and colleagues at work.

Please note: Some of the resource documents may still refer to the Ontario College of Trades (the College), which has ceased operations and has been replaced by Skilled Trades Ontario. These documents are now being revised to reflect this change to the skilled trades system in Ontario. All other information contained in these documents continues to be relevant and accurate.