In 2012, the Occupational Safety and Health Administration (OSHA) revised the Hazard Communication Standard (29 CFR 1910.1200) to align it with the United Nations Global Harmonization System (GHS). 

The goal in adopting provisions of the GHS into the hazcom standard was to give employees not only the “Right to Know” but the “Right to Understand” the hazards associated with the chemicals they work with by adopting a uniform system for classifying hazardand providing information on the hazards through GHS-style labels and safety data sheets.

OSHA’s revised standard (29 CFR 1910.1200) requires employers to train employees on the new GHS label elements and Safety Data Sheets format.

From OSHA’s website:

Hazard Communication Standard

In order to ensure chemical safety in the workplace, information about the identities and hazards of the chemicals must be available and understandable to workers. OSHA’s Hazard Communication Standard (HCS) requires the development and dissemination of such information:

Chemical manufacturers and importers are required to evaluate the hazards of the chemicals they produce or import, and prepare labels and safety data sheets to convey the hazard information to their downstream customers;

All employers with hazardous chemicals in their workplaces must have labels and safety data sheets for their exposed workers, and train them to handle the chemicals appropriately.

Major changes to the Hazard Communication Standard

Hazard classification: Provides specific criteria for classification of health and physical hazards, as well as classification of mixtures.

Labels: Chemical manufacturers and importers will be required to provide a label that includes a harmonized signal word, pictogram, and hazard statement for each hazard class and category. Precautionary statements must also be provided.

Safety Data Sheets: Will now have a specified 16-section format.

Information and training: Employers are required to train workers by December 1, 2013 on the new labels elements and safety data sheets format to facilitate recognition and understanding.