Currently in force:
CSA B340-25
Date published:
January 2025
Previous edition:
CSA B340-18
Upcoming edition/amendment:
CSA B340-29
On this page
- Scope of the standard
- Finding the standard in the TDG Regulations
- Accessing the standard
- Obtaining a copy of the standard
- Contact us
Scope of the standard
CSA B340 sets out the requirements for the selection, use, handling and filling of cylinders, spheres, tubes, and other containers for the transportation of gases in Class 2.
Finding the standard in the TDG Regulations
- 1.3.1 Table of Safety Standards and Safety Requirement Documents
- 1.3.2 Transitional Period
- 1.49 Cylinder Exemption
- 1.50 Hot Air Balloon Cylinder Exemption
- 5.10 Means of Containment for Class 2, Gases
Section 5.10 of the TDG Regulations specifies that for the transportation of dangerous goods in Class 2 by any mode, means of containment in accordance with CSA B340 are permitted.
Accessing the standard
The CSA Group has an online platform that allows registered users free access to Transportation of Dangerous Goods (TDG) safety standards published by CSA Group referenced in federal TDG regulations. Users can log into Communities of Interest and register to find the TDG View Access site.
Obtain a copy of the standard
A copy of this standard can be obtained from the Canadian Standards Association (CSA).
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 "Cylinders" in the subject line.