OSHA Releases Final Rule on Global Harmonized Standard (GHS) for Hazard Communications (HC) OSHA published the Final Rule for GHS on March 26th and provides a tiered timetable for compliance extending up to about 4 years. The changes in the HazCom requirements bring it into alignment with international standards including pictograms and labeling practices. The highly controversial provision requiring Safety Data Sheets to include a section for Hazards Not Otherwise Classified