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Ontario Dangerous Goods (TDG) Practice Test

Updated for 2026 · 40 dangerous goods (TDG) questions of 344 across the full Ontario commercial path · Aligned to the commercial driver's manual · See the commercial path

Start with General Knowledge first. We recommend completing it before drilling dangerous goods (TDG) questions.

Remember: TDG is federal Transport Canada certification, separate from your provincial commercial licence - not a licence endorsement test.

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Federal dangerous-goods (TDG) awareness: classes, placards, documents, and CANUTEC.

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About the Ontario Dangerous Goods (TDG) test

Transporting dangerous goods in Canada is governed by the federal Transportation of Dangerous Goods (TDG) Regulations, administered by Transport Canada. It is not a line on your provincial licence: there is no Canadian equivalent of the US HazMat endorsement. Instead, TDG is a separate federal certification and training requirement that exists alongside your commercial class.

This section is study material rather than a licence test, to help you understand the nine TDG classes, when placards and safety marks are required, the shipping documents a driver must carry, the role of valid TDG training (renewed every 36 months), and CANUTEC, Canada's national emergency-response centre for dangerous-goods incidents.

Ontario Dangerous Goods (TDG) Practice Test 2026 · Drive IQ Canada | Drive IQ Canada