This letter is to inform you that a Notice of Intent to amend the Non-domestic Substances List (NDSL) of the Canadian Environmental Protection Act, 1999 (CEPA), removing 83 substances, was published in the Canada Gazette, Part I, on September 23, 2017 ( A list of the Chemical Abstract Services Registry Numbers of these 83 substances can be found in the Notice of Intent.

Environment and Climate Change Canada has initiated a review of substances on the NDSL to assess if human health or environmental concerns had been raised for these substances in Canada, the United States, or under the Stockholm Convention on Persistent Organic Pollutants or the Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade. Risk management controls imposed by other jurisdictions can signal potential concerns in Canada, and as such merit more stringent reporting requirements (i.e. the same requirements as new substances not listed on the NDSL). Moving forward, the Government of Canada will do this review annually to identify substances that may potentially be of concern and to propose their removal from the NDSL.

Under the current review, a total of 83 substances are proposed for deletion from the NDSL.

Any person may submit comments within 60 days of publication of the Notice of Intent.  Please provide any information on commercial activities that may be pertinent to this initiative.  The final Order will be published in the Canada Gazette, Part I.

Comments will be taken into consideration during the development of the final Order, and stakeholders with current business interests in these chemicals (i.e. current importers or manufactures) will be engaged to facilitate a transition to the new reporting requirements.  For example, delayed removal will be considered for substances in the Canadian marketplace should additional time be required to ensure continued compliance with the New Substances Notification Regulations (Chemicals and Polymers).

Future amendments to the NDSL will also be preceded by a Notice of Intent published in the Canada Gazette, Part I, for a 60-day public comment period.

In accordance with section 313 of CEPA, any person who provides information may submit, with the information, a request that it be treated as confidential.

All comments must cite the Canada Gazette, Part I, and the date of publication of the notice and be sent to following address:

Mailing address:

Executive Director, Program Development and Engagement Division
Environment and Climate Change Canada
Ottawa, ON  K1A 0H3

Delivery by messenger:

Executive Director, Program Development and Engagement Division

Environment and Climate Change Canada
171 Jean-Proulx Street
Gatineau, QC J8Z 1W5

Email address:

For more information, please visit:

  • Chemicals Management Plan Web site:

–              Background on the Non-domestic Substances List:

–              Search Engine for Chemicals and Polymers:

For any question please contact the Substances Management Information Line:

Telephone: 1-800-567-1999 (in Canada) or 819-938-3232

Fax: 819-938-5212