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How are CERCLA hazardous substances defined? The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) defines "hazardous substance" by reference to the following authorities: Clean Water Act (CWA) section 311 (“CWA Hazardous Substances”), CWA section 307(a) (“CWA Toxic Pollutants”), Clean Air Act (CAA) section ...
In HAZWOPER, OSHA defined the term "hazardous substance" in such a way as to encompass those substances defined as hazardous by the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Transportation (DOT).
The term includes hazardous substances, hazardous wastes, marine pollutants, elevated temperature materials, materials designated as hazardous in the Hazardous Materials Table (see 49 CFR 172.101), and materials that meet the defining criteria for hazard classes and divisions in part 173 of this subchapter.
Hazardous substances are materials that can cause harm to humans, animals, or the environment. These substances can be found in many forms, such as chemicals, gases, liquids, and solids, and can be used in various industries, including manufacturing, construction, and agriculture.
The Department of Transportation (DOT) defines a hazardous material as a substance or material that is capable of posing an unreasonable risk to health, safety, and property when transported in commerce, and has been designated as hazardous under the federal hazardous materials transportation law (49 U.S.C. 5103).
What are chemical hazards and toxic substances? Chemical hazards and toxic substances pose a wide range of health hazards (such as irritation, sensitization, and carcinogenicity) and physical hazards (such as flammability, corrosion, and explosibility).
NFPA 400 defines hazardous material as any chemical or substance that is a physical hazard material or a health hazard material. Hazardous materials are then categorized based on the physical or health hazard they present.