Transport Canada is currently considering the development of new tank car design specifications based on proposals from the railroad industry, the American Railroad Tank Car Committee, and through technical discussions with the U.S. Pipeline and Hazardous Material Safety Administration. The new specifications would be enacted through an amendment in the Transport of Dangerous Goods regulations. The proposed tank car specifications, known as TC-140, would include full head-shields, thicker steel, electronically controlled braking systems, and improved bottom outlet valves.

Transport Canada expects that once stakeholder feedback is considered and the TC-140 requirements are enacted, all new tank cars being put into flammable liquid service will be expected to meet the standards, and any existing DOT-111 tank cars will require retrofitting in order to carry flammable materials, which builds on Transport Canada’s earlier decision to phase out older DOT-111 cars.

To view the proposed regulations, click here. To view Transport Canada’s explanatory note on the development of new tank car safety regulations, click here.

Written comments can be submitted to the following address by September 1, 2014:

Genevieve Sansoucy, Acting Chief,
Regulatory Affairs Branch
Transport Dangerous Goods directorate,
Department of Transport,
Place de Ville, Tower C, 9th Floor
330 Sparks Street
Ottawa ON K1A 0N5

Tel: 613-990-5766
Fax: 613-993-5925

For more information, click here.

Wyatt Skovron

Policy Analyst


Kim Heyman

Director, Advocacy & Communications


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