Final answer:
W.H.M.I.S stands for Workplace Hazardous Materials Information System, which is a Canadian system for providing safety information on workplace hazardous materials.
Step-by-step explanation:
W.H.M.I.S stands for the Workplace Hazardous Materials Information System. It is a comprehensive plan for providing information on the safe use of hazardous materials used in Canadian workplaces. WHMIS aims to protect workers by ensuring they have access to up-to-date information through various forms, such as product labels, safety data sheets (SDS), and worker education and training programs.