Independent index. Not a government website.
Ontario prescribes 144 trades, makes 23 of them compulsory, attaches a certifying exam to 83 and an apprentice to journeyperson ratio to 33. This registry publishes one verified record per trade: what the law classifies it as, how the certification works, and where the official sources are. Every classification fact is read directly from O. Reg. 876/21, never from a summary.
Browse all trade records, the list of compulsory trades in Ontario, or the TSSA fuel industry certificates, including the G.2 and G.3 gas technician records.
Each record answers the questions people actually ask: is the trade compulsory, is there an exam, is there a ratio, is it Red Seal, and how do you get certified. Facts we have not yet verified against a primary source are marked as not published rather than estimated, and every page carries a visible last verified date. Read more about the method on the about page.