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Evacuation and Shelter-in-Place Training > Extremely Hazardous Substance (EHS) Facility Managers
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KEY POINT

Black checkmarkKnow how to identify reportable substances.

What Chemicals are to be Reported

An Extremely Hazardous Substance (EHS) is one of 359 specifically listed in the Ohio EPA's State Emergency Response Commission (SERC) Facility Compliance Manual. The list contains the name of the chemical, the Chemical Abstracts Service (CAS) number, and the Threshold Quantity (TQ), Reportable Quantity (RQ), and Total Planning Quantity (TPQ).

If a chemical does not appear on this list it is not an EHS chemical. There are NO trade names on this list, only specific chemical names. The specific chemical names may appear in the list of active ingredients on the label of a trade-named product/material, or are stated on the Material Safety Data Sheet.

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