Welcome to DOE's Reportable Quantity (RQ) Calculator. Enter the name of a hazardous substance
or its Chemical Abstract Service registry number (CASRN) in the field above to look up its RQ
or to evaluate whether a release to the environment must be reported to the
National Response Center. If you misspell the name of the substance, the RQ Calculator will
return a list of possible alternatives.
Please see our disclaimer before using the RQ Calculator.
Currently running Version 4.1 (Updated 01/25/21)