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Hazard communication/GHS

The Globally Harmonized System (GHS) provides a common, consistent criteria for classifying and labeling chemicals in the workplace. Learn how GHS impacts employers, and how to train workers to recognize and protect themselves.

Oregon OSHA

Visit the Oregon OSHA website to learn more about hazard communication, including:


GHS reference poster [Spanish]
This poster provides an overview of pictograms, SDS sheets, and labeling requirements included in the HazCom standard.

Hazard communication (OSHA)
This site contains numerous resources and links to information on safety data sheets (SDS), labeling, and pictograms.

Hazard communication training (Center for Construction Research and Training)
This eight-section training provides an overview of the HazCom standard and includes basic instruction on workplace chemical hazards.

CHAP-Chemical Hazard Assessment and Prioritization (Toronto Metropolitan University)
A new way to assess chemical hazards.

For information on pesticides and other chemicals in agriculture, see our agriculture and farm safety page.