The Substances Lists

The Domestic Substances List (DSL) is the sole basis for determining whether a substance is new for the purposes of the Canadian Environmental Protection Act, 1999 (CEPA, 1999). Substances on the DSL do not require notification unless they are proposed for a Significant New Activity (SNAc) as indicated on the DSL. Substances not appearing on the DSL are considered to be new to Canada and are subject to notification under the New Substances Notification Regulations (Chemical and Polymers) and New Substances Notification Regulations (Organisms) of CEPA, 1999.

The Non-domestic Substances List (NSDL) specifies substances that are not on the DSL but are in commercial use internationally. As a basis for this list, Environment Canada used the United States Toxic Substances Control Act (TSCA). Substances on the NSDL are subject to notification under the Regulations of CEPA, 1999 but may require different information in the New Substance Notification (NSN) packages.

• Notice to interested parties - Intent to delete non-eligible substances from the Domestic Substances List
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• Annex 1 - List of of substances proposed for deletion from the Domestic Substances List
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• The New Substances Program’s Search Engine for Chemicals, biochemicals, polymers and biopolymers published in the Canada Gazette
  
  
• The New Substances Program’s Search Engine for animate products of biotechnology published in the Canada Gazette
  
  
• View the list of substances published in the Canada Gazette by the New Substances Program
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• View the DSL and NSDL list of Enzymes
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• View the DSL list of Organisms and microorganisms
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