WHMIS

The Workplace Hazardous Materials Information System (WHMIS, known as SIMDUT, Système d'information sur les matières dangereuses utilisées au travail in French, Canada's other national language) is Canada's national workplace hazard communication standard. The key elements of the system, which came into effect on October 31, 1988, are cautionary labelling of containers of WHMIS controlled products, the provision of material safety data sheets (MSDSs) and worker education and site-specific training programs. WHMIS has some symbols that should be placed in the entrance of the well site.