The Hazard Communication Standard (HCS), often called HazCom or employee Right to Know law, is a set of regulations first promulgated in 1988 by the Office of Occupational Safety and Health Administration (OSHA). It has been adopted by and is enforced by CalOSHA. The Standard's purpose is to ensure that the hazards of workplace chemicals are evaluated, and that information on the hazards is provided to employers and employees. Details of the Standard are provided in 29 CFR 1910.120. HCS covers nearly all employers and is applicable to most work operations where hazardous materials are present. To acquire Material Safety Data Sheets (MSDS's) for your workplace, contact your product vendor.