Notice – New edition of CAN/CGSB 43.125 is published

A new edition of the following standard has been developed by the Canadian General Standards Board (CGSB) Technical Committee and was published in November 2021:

CAN/CGSB 43.125 "Packaging of Category A and Category B infectious substances (Class 6, Division 6.2) and clinical, (bio) medical or regulated medical waste".

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Coming into force

Stakeholders must comply with the 2021 edition of CAN/CGSB 43.125, but in accordance with Section 1.3.2 of the TDG Regulations, the previous version of the document (2016 edition) may be complied with during the transitional period of six months ending on May 31, 2022.

Most notable changes

The most notable changes that appear in the new edition of this standard are summarized below:

  • alignment with the 21st edition of the United Nations Recommendations on the Transport of Dangerous Goods - Model Regulations (Orange Book) (eg. updated definitions, packing instruction for UN3549 – see bullet below)
  • periodic retest of Type P620 packaging design every five years
  • clarification of the requirements for the preparation of a Type P650 packaging design report (Note: a report must be prepared, but submission to Transport Canada is not required)
  • introduction of packing instructions for the transport of the new classification UN3549, MEDICAL WASTE, CATEGORY A, AFFECTING HUMANS, solid or MEDICAL WASTE, CATEGORY A, AFFECTING ANIMALS only, solid

For more information, you can find a detailed summary of the significant changes between CAN/CGSB-43.125-2016 and the updated CAN/CGSB-43.125-2021 Standard.

Accessing the new standards

The standard may be obtained free of charge from:

Canadian General Standards Board
Sales Centre
Gatineau, Canada K1A 1G6

Telephone: 819-956-0425
Toll free: 1-800-665-2472
Fax: 819-956-5740

Website: Public Services and Procurement Canada

Obtain a copy of standard CAN/CGSB 43.125.

The standard may also be obtained from:

Government of Canada Publications
Publishing and Depository Services
Public Services and Procurement Canada
Ottawa, ON, K1A 0S5

Telephone: 613-941-5995
Toll free: 1-800-635-7943
Fax: 1-800-565-7757 or 613-954-5779.
Website: Government of Canada Publications

Participating in the development of future editions of these standards

Individuals and organizations interested in participating and contributing in the development of future editions of the standard are encouraged to contact the Canadian General Standards Board (CGSB) by any of the means below.

Canadian General Standards Board
Gatineau, Canada K1A 1G6

Website: Public Services and Procurement Canada
Email :
Telephone: 1-800-665-2472

Contact us

Stakeholders may submit questions to Transport Canada regarding the new edition of CAN/CGSB 43.125 by sending an email to