Hazard Communication Standard

The Hazard Communication Standard (HCS) establishes uniform requirements to make sure that the hazards of all chemicals imported into, produced, or used in U.S. workplaces are evaluated, and that this hazard information is communicated to employers and exposed employees. This standard gives workers a right to know and a right to understand the chemicals they use and how to work with them safely.

HCS is different from other OSHA health rules, because it covers all hazardous chemicals. It was recently revised to align with the Globally Harmonized System of Classification and Labeling of Chemicals.

The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is an international system for standardizing the classification and labeling of chemicals. The GHS was developed by experts from many different countries, international organizations, and stakeholder groups. OSHA modified its Hazard Communication Standard to adopt the GHS, effective June 1, 2015. Whereas OSHA's original standard allowed chemical manufacturers to choose their own format for labeling, the GHS now provides a standard format, which helps ensure appropriate handling and safe use of chemicals.

There are three major areas of change to the Hazard Communication Standard:

• Hazard Classification
• Labels
• Safety Data Sheets

To learn more about Construction Chemical Hazards visit our Construction Chemical Hazards & Toxic Substances Online Training web page.