On July 23, 2025, Environment and Climate Change Canada (ECCC) announced the release of the Plan of Priorities , a multi-year plan that outlines upcoming priorities for the assessment of chemical substances. The Plan includes a list of more than 30 substances and substance groups prioritized for assessment and includes new or expanded activities to help assess, control, and manage risks posed by substances. ECCC states that in selecting and prioritizing these substances, considerations included:

Substances that are hazardous to human health and/or the environment, including carcinogens, mutagens, and reproductive toxicants, as well as endocrine disrupting substances;

Substances that are impacting populations or environments that may be at increased risk, due to either greater exposur

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