The GHS Purple Book provides guidance on the use of the GHS hazard communication standard (HCS) and the GHS labeling system. The guidance is organized into three sections:
Section 1 provides an overview of the GHS labeling system.
Section 2 provides guidance on how to use the GHS labeling system to create labels that are compliant with the HCS.
Section 3 provides guidance on how to use the GHS labeling system to communicate information about hazards that are not covered by the HCS.