Edition currently in force:

Date published:
February 2009 (English)
October 2009 (French)

Amendments in force:
Update no.1 February 2010

Previous edition:

Upcoming edition / amendment:
Reaffirmed in 2015

What is the scope of the standard?

The CSA-B626 standard sets out the requirements for design and construction of TC 44 portable tanks for the transportation of diesel fuel, a dangerous good included in Class 3. The certification, assembly, marking, modification, repair, testing, inspection and periodic retesting, maintenance, and identification of such tanks are covered by CSA B620. Selection and use of TC 44 portable tanks are covered by CSA-B621.

Where is the standard referenced in the TDG Regulations?

Section 5.14 of the TDG Regulations specifies that a means of containment selected and used in accordance with CSA-B621 is a permitted container for the transport of dangerous goods in Class 3 by road or by ship. CSA-B621 invokes the CSA-B620 standard in relation to the design, construction, certification, assembly, modification, repair, testing, inspection, periodic re-testing, maintenance, and marking of TC portable tanks. In turn, CSA-B620 invokes the CSA-B626 standard for the design and construction of TC 44 portable tanks.

How do I view the standard for free?

The CSA Group has launched 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 now log into Communities of Interest and register to find the TDG View Access site at https://community.csagroup.org/community/ohs/tdg-standards-view-access#.

What are the specifications for TC Portable Tank?

Included are line drawings and general descriptions of each tank specification and the dangerous goods for which they are commonly used. Full information on these tanks can be found in clause 6 of the CSA-B620, and in the CSA-B626 and CSA-B621 standards.

TC Portable Tank Specifications

How do I obtain a copy of the standard?

A copy of this standard can be purchased from the Canadian Standards Association (CSA).

When will the 2009 version of CSA-B620 come into effect?

This standard has come into effect July 15, 2014.

What is the status of the next edition?

The CSA Technical Committee on the B626 standard is continuously working on the next edition of the standard. The standard was reaffirmed in 2015.

Where can I obtain more information?

For more information on matters pertaining to CSA B620:

Inquiries pertaining to applications for registration:
After choosing the language (1 for English, 2 for French), press option 1.


Technical inquiries:
Please include the text "Highway Tanks" in the subject line.

Quick Links

FAQ on TC Portable tanks

The FAQ on Highway Tanks (tank trucks) and TC Portable tanks includes information on the requirements for highway tanks (tank trucks) and TC portable tanks as well as the requirement to be registered by Transport Canada to manufacture, assemble, modify, repair, inspect or test highway or portable tanks.

Highway and TC Portable Tanks Registered Facilities

Search the TDG database for facilities registered by Transport Canada pursuant to CSA-B620 for manufacture, assembly, modification, repair, inspection and testing, and mobile inspection and testing of highway and TC portable tanks.

Designated Design Review Agencies - Highway and TC Portable Tanks

Get a list of designated design review agencies registered by Transport Canada pursuant to CSA-B620.

Design Engineers - Highway and TC Portable Tanks

Search the TDG database for design engineers registered by Transport Canada pursuant to CSA-B620.


Information on CSA-B620 (the CSA standard on "Highway Tanks and TC Portable Tanks for the Transportation of Dangerous Goods").


Information on CSA-B621 (the CSA standard on "Selection and Use of Highway Tanks, TC Portable Tanks, and Other Large Containers for the Transportation of Dangerous Goods, Classes 3, 4, 5, 6.1, 8, and 9").

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