Reportable Quantity (RQ)
Quantity of a hazardous substance that triggers reports under CERCLA.
DOT Reportable Quantity
The quantity of a substance specified in a U.S. Department of Transportation regulation that triggers labelling, packaging and other requirements related to shipping such substances.
Down gradient ...
Hazardous Substance: A material including its mixtures and solutions that is listed in the 172.101 - Hazardous Materials Table or is in a quantity, in one package, which equals or exceeds the reportable quantity (RQ) listed in the Hazardous ...
 See also: Table, Release, Community, Hazard, Filling
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