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Appendix A to § 1910.119 - List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory) This appendix contains a listing of toxic and reactive highly hazardous chemicals which present a potential for a catastrophic event at or above the threshold quantity.
The location and availability of the written hazard communication program, including the required list(s) of hazardous chemicals, and safety data sheets required by this section.
OSHA sets enforceable permissible exposure limits (PELs) to protect workers against the health effects of exposure to hazardous substances, including limits on the airborne concentrations of hazardous chemicals in the air.
§ 1910.119 Process safety management of highly hazardous chemicals. Purpose. This section contains requirements for preventing or minimizing the consequences of catastrophic releases of toxic, reactive, flammable, or explosive chemicals.
Essential requirements of the HCS for employers include: Maintaining a master list of hazardous chemicals on-site. Creating a written hazard communication program. Properly labelling hazardous chemicals. Making Safety Data Sheets readily accessible to employees. Providing comprehensive training.
The OSHA Hazard Communication Standard is designed to ensure chemical safety in the workplace. The standard, which requires workplaces to provide written information about the identities and hazards associated with the chemicals, must be available and understandable to workers.
How should a facility determine whether it must comply with 40 CFR Part 370 if it is uncertain whether it has a hazardous chemical for which OSHA requires an MSDS? There is no comprehensive list of hazardous chemicals.
Under §1910.1200 (c), OSHA defines a hazardous chemical as "any chemical which is classified as a physical hazard or a health hazard, a simple asphyxiant, combustible dust, pyrophoric gas, or hazard not otherwise classified."
The list of hazardous chemicals are required under 1910.1200. OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations.
The Hazard Communication Standard (HCS), or HazCom 2012, consistently makes OSHA's top 10 list of frequently violated regulations. It requires chemical assessment, documentation including a Safety Data Sheet (SDS), container labeling, and employee training.