The document summarizes the key changes and requirements of the revised OSHA Hazard Communication Standard, which aligns with the UN's Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The major changes require new standardized labeling elements including product identifiers, signal words, pictograms, hazard and precautionary statements. Safety Data Sheets are now called Safety Data Sheets and also have a standardized 16-section format. Employers must train workers on the new label elements and SDS format to improve understanding of chemical hazards.