Final answer:
Employers must provide ready access to Safety Data Sheets (SDS) for WHMIS products to their employees as per the requirements set by the Occupational Safety and Health Act (OSHA).
Step-by-step explanation:
Employers are responsible for ensuring that current Safety Data Sheets (SDS) sheets are received and maintained for all WHMIS products. They must ensure that employees have ready access to SDS sheets. This is in accordance with the regulations set out by the Occupational Safety and Health Act (OSHA), which stipulates that employers must provide a safe workplace by informing workers about chemical hazards through training, labels, and chemical information sheets, among other methods. It is a requirement that employers do not just rely on personal protective equipment to safeguard employees, but also attempt to eliminate or reduce hazards through feasible changes in working conditions.