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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 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

One of the best trainings I have ever received!

Brandon Morfin

EH&S Manager

The instructor's energy, enthusiasm, and knowledge of the subject make the class a great learning experience!

Brian Martinez

Warehouse Operator

I can't say enough how pleased I was with this course! Everything finally makes sense.

Kim Graham

Lab Manager

I think LION does an excellent job of any training they do. Materials provided are very useful to my day-to-day work activities.

Pamela Embody

EHS Specialist

I have attended other training providers, but Lion is best. Lion is king of the hazmat jungle!!!

Henry Watkins

Hazardous Waste Technician

The instructor was very patient and engaging - willing to answer and help explain subject matter.

Misty Filipp

Material Control Superintendent

The course was very informative and presented in a way that was easily understood and remembered. I would recommend this course.

Jeffrey Tierno

Hazmat Shipping Professional

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

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This report details major changes for hazardous waste generators from US EPA’s Generator Improvements Rule, as well as the latest updates from states that are still working to adopt new, stricter Federal requirements.

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