Toxic substances list: DDT

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:

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

Risk Management Tool(s)

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


Substances Management Information Line
Chemicals Management Plan
Gatineau, QC K1A 0H3

Telephone: 1-800-567-1999  (in Canada) or 819-938-3232
Fax: 819-938-3231


Return to Substance List

Report a problem or mistake on this page
Please select all that apply:

Thank you for your help!

You will not receive a reply. For enquiries, contact us.

Date modified: