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In Ontario, there are 23 trades designated as compulsory. To legally work in a compulsory trade, you must hold a Certificate of Qualification or Provisional Certificate of Qualification issued by Skilled Trades Ontario or be registered as an apprentice with the Ministry of Labour, Training and Skills Development and hold a Registered Training Agreement. Your information must appear in the Skilled Trades Ontario Public Register.

All compulsory trades have certifying exams. A Certificate of Qualification in a compulsory trade will expire and needs to be renewed at a determined date.

Find out if the trade you’re considering is compulsory and learn more about what’s involved.