June 6, 2016: Transport Canada Issues Protective Direction 37

The Minister of Transport has issued Protective Direction 37, which will require retrofitted TC/DOT-111 tank cars to include top-fitting protection. The goal of the PD, which will be effective as of June 6, 2016,  is to improve the safe transportation of flammable liquids in Canada.
The previous standard for retrofitted tank cars was published on May 20, 2015 but due to technical difficulties did not include top fitting protection requirements. Since that publication, AAR has developed a way to enable top fitting protection on these tank cars.

Protective Direction 37