TDG Certification Canada Guide — Transport of Dangerous Goods Explained | Safety Mom

📚 Guide by Safety Mom · Allstar Enviro Safety — Written and reviewed by Arliss Levine, CRSP, CHSC. TDG training available online across Canada.

TDG comprehensive emergency response training for Canadian dangerous goods drivers

TDG (Transportation of Dangerous Goods) certification is required for anyone in Canada who handles, offers for transport, or transports dangerous goods by road, rail, air, or marine. Under the federal Transportation of Dangerous Goods Act, 1992 and the TDG Regulations, workers must be trained and certified before they can classify, package, mark, document, or transport regulated dangerous goods.

Who needs TDG certification

TDG certification is required for any Canadian worker whose duties involve handling, offering for transport, or transporting dangerous goods. This includes commercial drivers hauling fuel, chemicals, oilfield fluids, or industrial gases; warehouse workers loading and shipping hazardous products; oilfield service crews transporting sour crude, drilling fluids, or completions chemicals; consignors (shippers) preparing dangerous goods shipments; and supervisors overseeing TDG-regulated operations.

The 9 TDG dangerous goods classes

Transporting sour crude covers TDG Class 2 (H2S gas) and Class 3 (flammable liquid) requirements

TDG training and certification

Under TDG Regulation Part 6, employers must ensure that any person who handles, offers for transport, or transports dangerous goods is adequately trained and holds a valid Training Certificate. The certificate is issued by the employer based on completion of training that covers the specific dangerous goods, transport modes, and duties the worker performs.

How to book TDG training

FAQ — TDG certification Canada

How long is a TDG certificate valid?

TDG certificates for road transport are valid for 3 years (36 months) from the date of issue. For air transport (IATA DGR), certificates must be renewed every 2 years (24 months). Marine and rail transport follow the 3-year cycle.

Who issues the TDG training certificate?

Under the TDG Regulations, the employer issues the Training Certificate to the worker. The certificate must show the employer’s name, the worker’s name, the type of training completed, the expiry date, and the employer’s signature. Third-party training providers deliver the course; the employer signs off on the certificate.

Do I need TDG for small quantities of dangerous goods?

Some small quantities are exempt from full TDG requirements (Special Provision 99 — “limited quantities”), but the exemption depends on the product class, packaging, and quantity per package. Workers should still receive general TDG awareness training even for limited-quantity shipments.

What is the difference between TDG and IATA DGR?

TDG is the Canadian federal framework for transporting dangerous goods within Canada. IATA DGR (Dangerous Goods Regulations) is the International Air Transport Association standard for international air transport. Workers shipping dangerous goods by air internationally need IATA DGR training in addition to TDG.

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