DG Digest: Transport Canada Publishes Updates on Tank Cars, Ammonia Nurse Tanks, Class 1 Explosives Packaging

The third week of April means the spring storm season is in full swing, so make sure your workplace and home are both ready to cope with potential heavy weather. In the regulatory world, Transport Canada was a busy player last week, with several actions of note. Here’s the latest news:

Transport Canada

The ministry published a notice regarding the phase out date for DOT Type 111 tank cars in flammable liquids service in Canada. The deadline date is May 1st, 2025. See the notice here.

The ministry also issued a safety advisory regarding nurse tanks used in the agriculture industry to transport and store anhydrous ammonia. Ammonia is used as a fertilizer. Tanks manufactured by American Welding & Tank from 2007 to 2011 are subject to the advisory. See it here.

Finally, the ministry published a new standard, CAN/CGSB-43.151, that updates the requirements for the packaging and transport of Class 1 explosives. Notable changes include:

  • Updated list of explosives, special provisions and packing instructions to align with the 22nd edition of the UN recommendations.
  • Updated references to other dangerous goods packaging standards.
  • Updated packing instruction EP101, CEP 01 and CEP 02.
  • Added requirements on the reuse of packagings and use of partially filled packagings to transport Class 1 Explosives.
  • Updated decontamination requirements.
  • Added provision to prohibit the use of lightweight IBC for the transport of Class 1 Explosives.

The CAN/CGSB-43.151 standard is intended for incorporation by reference into the Transportation of Dangerous Goods Regulations (TDGR). Stakeholders have 6 months after the publication of the new version of the standard to fully comply with it. Find the action here.


The agency released its latest tranche of Special Permit (SP) actions. As is typical, many of the actions pertain to cylinders, tanks, and various unique transport requirements. See the actions at the links here:

2024-08234.pdf (govinfo.gov)

2024-08235.pdf (govinfo.gov)

2024-08236.pdf (govinfo.gov)


The agency is requesting comment via an ICR about its planned shift of its Unified Registration System (URS) to an online portal and system. The agency hopes that the shift will make life a little easier for motor carriers required to register. See the details and how to comment here.

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