The Canadian Environmental Protection Act of 1999 (CEPA) provides a variety of federal environmental protection provisions throughout Canada. The Minister of the Environment and Climate Change (the Minister; who oversees Environment and Climate Change Canada (ECCC), and to which I attribute CEPA authorizations in this note) prepares regulations (including lists of chemicals regulated in different circumstances), and conducts additional planning, regulatory and enforcement activities. In particular, CEPA authorizes the Minister to issue Pollution Prevention Notices (P2 Notices) directing targeted entities to prepare P2 Plans to improve management of any listed “Toxic Substance” in order to reduce environmental impacts. The rest of this note summarizes P2 requirements, which will be revised to conform with CEPA amendments adopted this summer by Bill S-5, the “Strengthening Environmental Protection for a Healthier Canada Act” (S-5), which received Royal Assent on June 13, 2023.