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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 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

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

Misty Filipp

Material Control Superintendent

I had a positive experience utilizing this educational program. It was very informative, convenient, and rewarding from a career perspective.

John Gratacos

Logistics Manager

Energetic/enthusiastic! Made training enjoyable, understandable and fun!

Amanda Walsh

Hazardous Waste Professional

Lion courses are the standard to which all other workshops should strive for!

Brody Saleen

Registered Environmental Health Specialist

The price was reasonable, the time to complete the course was manageable, and the flexibility the online training allowed made it easy to complete.

Felicia Rutledge

Hazmat Shipping Professional

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

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

Brian Martinez

Warehouse Operator

Very well structured, comprehensive, and comparable to live training seminars I've participated in previously. I will recommend the online course to other colleagues with training requirement needs.

Neil Luciano

EHS Manager

More thorough than a class I attended last year through another company.

Troy Yonkers

HSES Representative

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