InstituteToxic/Hazardous Substance ReleasesCERCLA, SARA, EPCRA CERCLA, SARA, EPCRARelease NotificationsIn Depth Sub Topics (Level 4)EnvironmentalEnglishSARA ComplianceAnalysisFocus AreaUSA
“Within a 24-hour period” factor
['CERCLA, SARA, EPCRA']

- The last element indicating when a release is reportable is whether an amount of the hazardous substance equaling or exceeding the RQ is released over a 24-hour period.
The last element indicating when a release is reportable is whether an amount of the hazardous substance equaling or exceeding the reportable quantity (RQ) is released over a 24-hour period. This time frame refers to the time period over which a release is to be measured; it does not mean that one has 24 hours in which to report the release. Rather, reporting to the National Response Center (NRC) must occur immediately upon the discovery that an RQ has been exceeded.