The List of Toxic Substances in Schedule 1 of the Canadian Environmental Protection Act, 1999 (CEPA 1999) includes substances that are considered to be toxic as defined in Section 64 of the Act:
"A substance is toxic if it is entering or may enter the environment in a quantity or concentration or under conditions that:
- have or may have an immediate or long-term harmful effect on the environment or its biological diversity;
- constitute or may constitute a danger to the environment on which life depends; or
- constitute or may constitute a danger in Canada to human life or health."
The Government of Canada has the authority to regulate and authorize other instruments to prevent or control the use and/or release of these substances. Substances are added to Schedule 1 of CEPA 1999 by the Government of Canada based on the Ministers of Environment and Health's recommendation. For the complete listing of these substances, see Toxic Substances List - Schedule 1.