Frequently Asked Questions (FAQs)

The following are some frequently asked questions about EPA's notification requirements and hazardous substance reporting triggers. Select the topic area of interest from the list of questions below.

NOTIFICATION

Who Is Required to Notify?
What Information Must Be Provided?
Who Must Be Notified?
What Substances Are Covered?
What Are Reportable Quantity Levels?
What Constitutes a Release Under CERCLA?
What Releases Are Excluded From CERCLA Reporting?
How Are Continuous Releases Reported?
What Is the Relationship Between Liability and Reporting?

REPORTABLE QUANTITY ADJUSTMENTS

How Does the Reportable Quantity Adjustment Methodology Work?
What Is the Purpose of Reportable Quantity Adjustments?