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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 is at the top of the industry in compliance training. Course content and structure are updated frequently to make annual re-training enjoyable. I like that Lion has experts that I can contact for 1 year after the training.

Caroline Froning

Plant Chemist

Lion is easily and consistently the best option for compliance training. I've learned new information from every instructor I've had.

Rachel Mathis

EHS Specialist

The instructor was very knowledgeable and provided pertinent information above and beyond the questions that were asked.

Johnny Barton

Logistics Coordinator

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

I really enjoyed this training. Even after years on both sides of the comprehension coin, I find myself still learning! The quality of the delivery exceeded much of the training I have received in the past.

Neil Ozonur

Safety Officer

Excellent course. Very interactive. Explanations are great whether you get the questions wrong or right.

Gregory Thompson

Environmental, Health & Safety Regional Manager

This training broke down the regulations in an easy-to-understand manner and made them less overwhelming. I now feel I have the knowledge to make more informed decisions.

Amanda Oswald

Shipping Professional

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

Gary Hartzell

Warehouse Supervisor

The exercises in the DOT hazardous materials management course are especially helpful in evaluating your understanding of course information.

Morgan Bliss

Principal Industrial Hygienist

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

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