A recent amendment to the Transportation of Dangerous Goods Regulations introduced ambulatory references to allow stakeholders to use the most recent versions of certain international codes and safety standards for a means of containment. Whenever a new edition of dynamically-referenced standards is published, stakeholders will have 6 months from the day the revised standards is published to comply.
The regulatory amendment was published on July 12, 2017 which means that compliance with the 14 technical standards such as CSA B339 is required by January 12, 2018.
A list of the 14 technical standards can be viewed here.