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What is a hazardous substance?

OSHA developed the HAZWOPER Standard to protect emergency responders, site cleanup workers, and others who may be exposed to "hazardous substances." In the HAZWOPER regulations, OSHA defines "hazardous substances" to include four categories:

"CERCLA Hazardous Substances"
(Listed in 40 CFR 302.4)

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) authorizes US EPA to maintain a list of substances that can damage the environment if released. The list of CERCLA hazardous substances includes hundreds of substances, from acetone and ammonia to xylene and zinc.

"Hazardous Materials"
(As defined by 49 CFR 171.8)

The US Department of Transportation (DOT) defines a “hazardous material” as any substance or material that meets one or more of the criteria of a Hazard Class or Division described in 49 CFR 173, or any material that does not meet those criteria but DOT deems a hazardous material (e.g., Class 9).

"Hazardous Waste"
(As defined by 40 CFR 261.3)

Under the Resource Conservation and Recovery Act (RCRA), a hazardous waste is a waste that either:

Exhibits one or more hazardous waste characteristics (ignitability, corrosivity, reactivity, or toxicity), or
Is described on one of the lists of hazardous wastes in the RCRA regulations (F, K, P & U).

"Biological agents"
and "other disease-causing agents"

Agents "...which after release into the environment and upon exposure, ingestion, inhalation, or assimilation into any person...will or may reasonably be anticipated to cause death, disease, behavioral abnormalities, cancer, genetic mutation, physiological malfunctions, or physical deformation..."

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Lion's course was superior to others I have taken in the past. Very clear in the presentation and the examples helped to explain the content presented.

George Bersik

Hazardous Waste Professional

Amazing instructor; real-life examples. Lion training gets better every year!

Frank Papandrea

Environmental Manager

Excellent class, super instructor, very easy to follow. No rushing through material. Would like to take his class again.

Lawrence Patterson

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Course instructor was better prepared and presented better than other trainers. Course manual and references were easier to use as well.

Marty Brownfield

Hazardous Waste Professional

Lion is my preferred trainer for hazmat and DOT.

Jim Jani

Environmental Coordinator

The instructor made the class enjoyable. He presented in a very knowledgeable, personable manner. Best class I've ever attended. Will take one again.

John Nekoloff

Environmental Compliance Manager

Much better than my previous class with another company. The Lion instructor made sense, kept me awake and made me laugh!

Marti Severs

Enterprise Safety Manager

Excellent job. Made what is very dry material interesting. Thoroughly explained all topics in easy-to-understand terms.

David Hertvik

Vice President

Lion's information is very thorough and accurate. Presenter was very good.

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My experience with Lion training, both online and in the classroom, is that they are far better organized and provide a better sequential explanation of the material.

Robert Roose

Manager, Dangerous Goods Transportation

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