The short version
Since SOR/2023-206 added Part 17 to the Transportation of Dangerous Goods Regulations (in force October 25, 2023), most persons who import, offer for transport, handle or transport dangerous goods in Canada must be registered in Transport Canada's Client Identification Database (CID). The initial registration deadline — October 25, 2024 — is long past. What trips companies up now are the two ongoing obligations:
- Annual renewal (s. 17.4): you must renew your registration every year, within 30 days of the anniversary date of your initial registration — by validating or updating your information in the CID.
- Change updates (s. 17.5): you must update the CID within 60 days of any change to the registered information.
Miss the 30-day renewal window and you are out of compliance — no reminder letter required. Put your anniversary date in your compliance calendar today.
What the CID wants from you
Registration is at the business level, but you report per site:
- Legal name (and operating names) of the company
- A contact person and a backup, with phone and email
- The address of each site where dangerous goods activities take place
- The mode(s) of transport used at each site
- The classes/divisions of dangerous goods handled at each site in the previous fiscal year
- The activities at each site (import, offer for transport, handle, transport)
New in 2026: a clarified exemption for small operators
The SOR/2026-127 amendment (July 2026) settled a long-standing ambiguity: the special cases in Part 1 of the TDGR — except section 1.16 — provide an exemption from Part 17's registration requirements. If your dangerous goods activities fall entirely under a Part 1 special case (other than 1.16), you do not need to register. Many small operators who registered "just in case" can now confirm whether the obligation actually applies to them. See our 2026 TDG amendments explainer for the rest of that amendment.
Your action checklist
- Find your registration anniversary date in the CID and diarize the 30-day renewal window — treat it like a licence renewal.
- Review your registered information now: sites, contacts, modes, classes handled. Anything stale must be corrected within 60 days of the change.
- Check the exemption if you are a small operator: does a Part 1 special case (other than s. 1.16) cover everything you do?
- Assign an owner. The renewal fails most often because nobody owns it — name a person, with a backup.
How Certigo can help
Certigo's compliance tools help you keep track of which dangerous goods move through each of your sites — useful raw material for an accurate CID file. Explore our TDG tools or our TDG training.
Sources
- SOR/2023-206 — Canada Gazette, Part II, October 25, 2023
- Transport Canada — Client Identification Database
- SOR/2026-127 — Canada Gazette, Part II, July 1, 2026 (Part 17 clarification)
This article is general information, not legal advice. Always verify requirements against the official texts before making compliance decisions.