The Canadian province of Ontario has made the installation of carbon monoxide detectors mandatory following an incident involving the deadly gas which left a family of four dead.

The provincial legislature of Ontario, Canada, has passed the Hawkins-Gignac Act, which mandates that carbon monoxide detectors be installed in all homes equipped with equipment or facilities that could lead to hazardous incidents involving the deadly gas, including fireplaces, attached garages, and fuel-burning appliances and heating systems. The act requires…