How to study the Canadian Electrical Code for the 309A exam
You need your own legal copy of the code. This site cites rule and table numbers. It does not reprint the text.
Sparky Prep is independent study material. It is not affiliated with or endorsed by the Red Seal Program, Skilled Trades Ontario, or CSA Group. Nothing here guarantees a pass.
National book and the Ontario book
Sparky Prep studies the Canadian Electrical Code, Part I, 2024, CSA C22.1:24, the 26th edition. That is the national book. Ontario electrical installations follow the Ontario Electrical Safety Code, which adopts the national code and adds provincial amendments.
Neither the Red Seal exam pages nor the Skilled Trades Ontario exam guide name the edition you will be given, or whether the sitting is open-book. Confirm that on your exam notice. Use the national book to learn the lookup. Do not assume a provincial amendment is on the interprovincial paper.
A way to practise the lookup
Read the stem, name the section you would open, then find the rule before you look at the explanation. The Red Seal preparation guide says every exam question is tied to a sub-task in the occupational standard, and that the writing time is four hours. Pace the lookup. A rule you cannot find in under a minute will not help you on a 100-question paper.
When you miss one, write the rule number, not a paraphrase of the code. Go back to that section the next day.