Dichlorodiphenyltrichloroethane

Dichlorodiphenyltrichloroethane was first registered as a pesticide under the Pest Control Products Act (PCPA) in the 1940s, and although it was never manufactured in Canada, it was widely used in pest control products until the 1960s. In response to increasing environmental and safety concerns, most uses of DDT in Canada were phased out by the mid-1970s. Registration of all uses of DDT was discontinued in 1985, with the understanding that existing stocks would be sold, used or disposed of by December 31, 1990. The sale or use of DDT in Canada today constitutes a violation of the PCPA.

For information on Canada's international engagement on this substance, please visit:

• UNECE Convention on Long-Range Transboundary Air Pollution (LRTAP) on Persistent Organic Pollutants (POPs)
• Rotterdam Convention
• Stockholm Convention

CAS (Chemical Abstracts Service) registry number: 789-02-6 and 50-29-3.

---

Risk Assessment

• Notice concerning the confirmation of "Track 1 substance" status for DDT as determined by assessment of these substances against the Track 1 criteria of the Toxic Substances Management Policy
• Order Adding Toxic Substances to Schedule 1 to the Canadian Environmental Protection Act, 1999
• Virtual elimination of the substance (Track 1) under the Toxic Substances Management Policy

---

Risk Management Tool(s)

Tool(s) developed to manage risks associated with the substance:

• Prohibition of Certain Toxic Substances Regulations, 2012

---

Risk Management Supporting Activities

Activities supporting the development or implementation of the risk management tool(s):

Forms related to the Prohibition of Certain Toxic Substances Regulations, 2012:

• Schedule 3: Information Related to the Use of Certain Toxic Substances in a Laboratory for Analysis, in Scientific Research or as a Laboratory Analytical Standard
• Schedule 4: Information Required in an Application for a Permit or an Application for Renewal of a Permit

---

Consultation

Consultation (past and present) on the substance:

• Proposed Regulations Respecting the Total, Partial and Conditional Prohibition of Certain Toxic Substances (archived consultation document)

---

Other Information

• Prohibition of Certain Toxic Substances Regulations, 2005 (Repealed)
• Export of Substances Under the Rotterdam Convention Regulations

---

Contact

Email : GR-RM@ec.gc.ca
Fax : 819-994-0007

Chemicals Management Division
Environment Canada
351 St. Joseph Blvd.
Gatineau, Quebec
K1A 0H3