Edition currently in force:
CSA B620:20
Date published:
November 2020
Previous version:
CSA B620-14
Upcoming edition/amendment:
A new edition of the Standard is currently under development. It is expected to be published in 2026.
The draft update to CSA B620, CSA B621 and CSA B622 is now available for a 60-day consultation period.
On this page
- Scope of the standard
- Finding the standard in the TDG Regulations
- Specifications for highway tanks
- Specifications for TC portable tanks
- Obtaining or viewing a copy of the standard
- Contact us
Scope of the standard
The CSA B620 standard sets out the requirements for design, construction, certification, assembly, modification, repair, testing, inspection, periodic re-testing, maintenance, and marking of highway tanks (tank trucks) and TC portable tanks for the transportation of dangerous goods. The standard also prescribes requirements for registration by Transport Canada of facilities, design review agencies, design engineers and training organizations for conducting the activities within the scope of the standard.
Finding the standard in the TDG Regulations
Section 5.10 of the TDG Regulations specifies that a means of containment in accordance with CSA B622 standard is a permitted container for the transport of dangerous goods in Class 2 by road or by ship while Section 5.14 of the TDG Regulations specifies that a means of containment in accordance with CSA B621 standard is a permitted container for the transport of dangerous goods in Class 3, 4, 5, 6.1, 8 and 9, by road or by ship. Both CSA B622 and CSA B621 invoke CSA B620 in relation to the design, construction, certification, assembly, modification, repair, testing, inspection, periodic re-testing, maintenance, and marking of highway tanks (tank trucks and trailers) and TC portable tanks. CSA B626 invokes CSA B620 for the certification, assembly, marking, modification, repair, testing, inspection and periodic retesting, maintenance, and identification of TC 44 portable tanks.
Specifications for highway tanks
Line drawings and general descriptions of each highway tank specification, along with the types of dangerous goods for which they are commonly used. Full technical details can be found in Clause 5 of the CSA B620 standard, as well as in the CSA B621 and CSA B622 standards.
Specifications for TC portable tanks
Line drawings and general descriptions of each TC portable tank specification, along with the types of dangerous goods for which they are commonly used. Full technical details can be found in Clause 6 of the CSA B620 standard, as well as in the CSA B621 and CSA B622 standards.
Obtaining or viewing a copy of the standard
A copy of the standard can be obtained directly from the Canadian Standards Association (CSA).
To view the standards, the CSA Group offers an online platform where registered users can access, free of charge, the Transportation of Dangerous Goods (TDG) safety standards published by CSA and referenced in the federal TDG Regulations. Users must log into CSA’s Communities of Interest and register for access to the TDG View Access site.
Contact us
Inquiries pertaining to applications for registration
Telephone: 1-855-298-1520
After choosing the language (1 for English, 2 for French), press option 1.
Email: MOCregister-Registrecontenant@tc.gc.ca
Technical inquiries
Email: tdgcontainers-tmdcontenants@tc.gc.ca.
Please include the text "Highway Tanks" or “TC Portable Tanks”, as applicable, in the subject line.