Please use the HAZWOPER Training Selector on a desktop computer.

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 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 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

Very good. I have always appreciated the way Lion Tech develops, presents and provides training and materials.

John Troy

Environmental Specialist

This is the best RCRA training I've experienced! I will be visiting Lion training again.

Cynthia L. Logsdon

Principal Environmental Engineer

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

Melissa Little

Regulatory 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

Lion Technology workshops are amazing!! You always learn so much, and the instructors are fantastic.

Dorothy Rurak

Environmental Specialist

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

Nicole Eby

Environmental Specialist

The instructor clearly enjoys his job and transmits that enthusiasm. He made a dry subject very interesting and fun.

Teresa Arellanes

EHS Manager

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

Brian Martinez

Warehouse Operator

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In-flight hazmat incidents can be disastrous. This guide gives 5 tips for first-time air shippers to consider before offering dangerous goods for transportation on passenger or cargo aircraft.

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