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Frequent Questions

Chemical Data Reporting (CDR)

These Frequent Questions are intended to clarify the reporting requirements for Chemical Data Reporting for the 2012 reporting period.

In EPA's August 16, 2011, Chemical Data Reporting rule, the Agency changed the name of its chemical reporting regulation from the Inventory Update Reporting (IUR) Rule to the Chemical Data Reporting (CDR) Rule, which is codified at 40 CFR 711. However, throughout this document, EPA has retained the use of the term "IUR" to reflect historic terminology and has used the term "CDR" to describe the revised reporting requirements under the new rule. In other words, EPA is using "IUR" to refer to the 2006 and earlier submission periods; it's using "CDR" to refer to the 2012 and later submission periods, to which the new rules apply.

These FAQs should be used for guidance only and are not a substitute for the Toxic Substances Control Act (TSCA) Chemical Data Reporting (CDR) rule. You should carefully review the CDR regulations, located at 40 CFR Part 711, for specific information on how to comply with CDR requirements.

Please see the left margin of this page for links to frequent questions on 2012 Chemical Date Reporting.

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