The purpose of this document is to provide general information on the Occupational Safety and Health Administration (OSHA) modifications to the Hazard Communication Standard (HCS) to conform with the United Nations (UN) Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The updated standard will apply to manufacturers and workers who produce or handle hazardous chemicals across the United States.
OSHA has revised the HCS (29 CFR 1910.1200) to align with the provisions of the UN GHS. GHS is an international approach to hazard communication providing standardized criteria for health, physical, and environmental hazards of chemicals to provide consistent information to workers, employers and chemical users. This means the look of labels and safety data sheets or SDSs (formerly known as Material Safety Data Sheets or MSDSs) will change. Most of the toxicity information will not change, but the classifications may change due to the new criteria.