What does the TDG course cover?
Built to the training subjects in Part 6 of the TDG Regulations, for road transport.
- Who the TDG Act and Regulations apply to, and the duties of consignors, carriers and consignees
- Classification: the nine classes, UN numbers and shipping names
- Dangerous goods safety marks: labels, placards and UN number marks
- Shipping documents: what they must show and where they are kept in the vehicle
- Means of containment: selecting, filling and handling packages and tanks
- Special provisions, exemptions and limited quantities
- Emergency Response Assistance Plans (ERAPs) and safe handling
- Reporting a release or anticipated release, and who to call
Is TDG training required in Canada?
Yes. Under Part 6 of the federal Transportation of Dangerous Goods Regulations, anyone who handles, offers for transport or transports dangerous goods must be adequately trained and hold a training certificate, or work under the direct supervision of someone who is.
How long does the TDG course take?
The TDG Regulations do not set a minimum number of hours. Training must cover the subjects that apply to your duties. We verify your ID and participation, but there is no proctoring queue; you start immediately.
Who issues my TDG certificate?
Your employer. Under the TDG Regulations, your employer issues your certificate of training once they are satisfied you are trained for your duties (self-employed people issue their own). When you pass, Gardril issues your TDG certificate showing your name, its expiry date and the aspects of dangerous goods handling you were trained in. You download it from CredentialVault. Your employer adds their name and business address, and you and your employer (or a person they authorize) both sign and date it: print it and write by hand, or type and sign in a PDF app such as Adobe Fill & Sign. Your employer keeps a copy, and you carry yours on paper or on your phone. The original stays online in CredentialVault with your verified photo, and the QR code on the certificate lets an inspector or employer confirm it is genuine in seconds.
Does a TDG certificate expire?
Yes. A TDG certificate of training for road transport expires 36 months after it is issued. To keep handling, offering or transporting dangerous goods after that, you need to be retrained and issued a new certificate.
Do I have to show my TDG certificate?
Yes. You must show your training certificate right away when a TDG inspector asks for it. Your employer keeps a copy, along with your training record, until two years after it expires.
Can someone without training handle dangerous goods?
Only while directly supervised by a trained person who holds a certificate. Camera surveillance or live monitoring doesn't count as supervision.
Does this course cover air or marine shipping?
No. This course covers transport by road. Air has its own training, and those certificates expire after 24 months.
Will employers accept an online TDG course?
Yes. The TDG Regulations do not say how training must be delivered; your employer decides whether you are adequately trained. Your Gardril credential gives them identity-verified proof that you did the training yourself.
Is this TDG course valid in my province or territory?
Yes. The federal TDG Regulations apply across Canada, and each province and territory adopts them for road transport within its borders, so this course is valid in every province and territory.
How does an employer verify my credential?
Scan the QR code on the credential or open its verification link. A public page confirms it is cryptographically signed and currently valid, and shows your photo. It takes seconds, no account needed. See a live verification
Compliance claims on this page last verified October 8, 2026.
