Is there a list of substances regulated by the Hazard Communication Standard?

There is no comprehensive list of substances regulated by 1910.1200 Hazard Communication. The standard covers any chemical or substance in the workplace which meets the definition of a health or physical hazard as those terms are defined at 1910.1200(c), or is a simple asphyxiant, combustible dust, or hazard not otherwise classified, except for those products specifically exempted under the HazCom regulation at 1910.1200(b)(6).

The rule requires chemical manufacturers and importers to classify the hazards of the chemicals they produce or import based upon criteria in Appendix A and Appendix B to 1910.1200. For each chemical, the manufacturer or importer must determine the hazard classes and category of each class that apply to that chemical, and prepare appropriate labels and safety data sheets to convey the hazards and precautionary measures to users of the chemicals.