Final answer:
Products may not display WHMIS supplier labels if they are exempt from labeling requirements, and understanding these exemptions helps ensure workplace safety and regulatory compliance.
Step-by-step explanation:
In the context of the Workplace Hazardous Materials Information System (WHMIS), products may not display WHMIS supplier labels if they are exempt from labeling requirements. Such exemptions typically relate to items that are either controlled in other ways, such as through direct workplace controls or governmental regulations, or items that do not meet criteria for being hazardous. It's important for employees to be aware of which products are exempt and why, in order to maintain a safe work environment and comply with WHMIS regulations.