Toxic use reduction legislation took effect in the Canadian province of Ontario in January 2010. A December 2009 news release from the provincial government said the scheme  would require regulated facilities in the manufacturing and minerals processing sectors track, report and develop plans to reduce the toxic substances they use, create and release. The requirement applied only to facilities currently reporting on emissions to the National Pollutant Release Inventory. It added these toxics reduction plans would “be available to the public as part of the government’s commitment to inform Ontarians about toxics.” But it added: “The implementation of the plans will be voluntary.” A supporting factsheet noted: “From the ranking exercise 34 substances, including 11 known or probable carcinogens, were prioritized. The ministry also reviewed carcinogens in consultation with Cancer Care Ontario and identified an additional 13 known or probable carcinogens for inclusion in the priority list.”

Ontario government news release, 4 December 2009. Toxics Reduction Act and factsheet.