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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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The instructor did an excellent job presenting a very dry subject; keeping everyone interested and making it enjoyable.

Marc Bugg

Hazardous Waste Professional

I attended training from another provider and learned absolutely nothing. Lion is much better. Hands down.

Nicole Eby

Environmental Specialist

The instructor was excellent. They knew all of the material without having to read from a notepad or computer.

Gary Hartzell

Warehouse Supervisor

Lion was very extensive. There was a lot of things that were covered that were actually pertaining to what I do and work with. Great Job. I will be coming back in three years!

Tony Petrik

Hazmat Shipping Professional

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

The instructor was very very informative, helpful, understandable and pleasant. This course answered many questions I had, being new to this industry.

Frances Mona

Shipping Manager

If I need thorough training or updating, I always use Lion. Lion is always the best in both instruction and materials.

Bryce Parker

EHS Manager

This is a very informative training compared to others. It covers everything I expect to learn and even a lot of new things.

Quatama Jackson

Waste Management Professional

Lion's training was by far the best online RCRA training I've ever taken. It was challenging and the layout was great!

Paul Harbison

Hazardous Waste Professional

The instructor was probably the best I ever had! He made the class enjoyable, was humorous at times, and very knowledgeable.

Mary Sue Michon

Environmental Administrator

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