Canadian Environmental Protection Act: priority substances list

Section 76 of the Canadian Environmental Protection Act, 1999 (CEPA) requires both the Minister of Environment and Climate Change Canada and the Minister of Health to establish a priority substances list (PSL). It identifies substances to be assessed on a priority basis to determine whether they are toxic (as defined under section 64 of the act) and pose a risk to the health of Canadians or to the environment.

Assessments of the first 44 substances placed on the list (PSL1) were completed by February 1994. Following the recommendations of a multi-stakeholder expert advisory panel, 25 substances were added to the list (PSL2).

Contact us

Existing Substances Branch
Environment and Climate Change Canada
351 St. Joseph Blvd
Gatineau QC  K1A 0H3
Phone number: 1-800-567-1999 (in Canada) or 819-938-3232
Facsimile: 819-938-5212

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