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Chemical Data Reporting (CDR)

Changes to IUR Since 2002 Reporting

There have been recent regulatory changes to the IUR. The January 2003 changes tailored the chemical substance reporting requirements to more closely match EPA's information needs; to obtain new and updated information concerning processing and use of a subset of chemical substances listed in the TSCA Inventory; and to improve the utility of the information reported. The availability of these data will enhance public awareness of basic information about chemical substances.

The major changes made by the 2003 IUR amendments were finalized on December 19, 2005, and include:

  • The production volume threshold that triggers reporting has been raised from 10,000 pounds to 25,000 pounds.
  • Reporting of manufacturing information was modified to include the number of workers reasonably likely to be exposed to the chemical substance at the site of manufacture or import; the physical form(s) of the substance as it leaves the submitter's possession; the percentage of the total production volume associated with each physical form; and the maximum concentration of the chemical substance at the time it is reacted onsite to produce a different chemical substance or as it leaves the site where it is manufactured or imported.
  • For chemicals produced in amounts equal to or greater than 300,000 pounds, additional reporting of processing and use information is required. New data elements include:
    • The type of processing or use operation;
    • The NAICS codes that best describe the industrial activities associated with the processing or use;
    • The industrial functions of the chemical substance during the processing or use operation;
    • The percent production volume, number of sites, and number of workers associated with each processing or use/NAICS/industrial function combination;
    • The commercial and consumer uses;
    • The indication of the presence of the substance in consumer products intended for use by children;
    • The percent of production volume associated with each commercial or consumer use; and
    • The maximum concentration associated with each commercial or consumer use.
  • A plant site's county or parish and an email address for the technical contact must now be reported.
  • Reporting of inorganic chemical substances will be required.
    • For 2006 reporting, a partial exemption for inorganic chemical substances is in place (i.e., no reporting of processing and use information).
    • For reporting in future years, inorganic substances as a category will be subject to full reporting requirements (i.e., no longer partially exempt). Manufacturers must report processing and use information for a reportable inorganic substance with a site-specific production volume of 300,000 pounds or greater.
  • A full exemption from IUR reporting for certain forms of natural gas was added.
  • A partial reporting exemption was created for certain listed petroleum process streams.
  • A partial exemption was created for specific chemical substances where EPA identified that there is a low current interest in the IUR processing and use information for the chemical.
  • The period for which reporting is required was changed from a corporate fiscal year basis to a calendar year basis.
  • Up-front substantiation of plant site confidentiality claims is now required for IUR submissions to EPA. This requirement is similar to the up-front substantiation requirement for chemical identity claims.

How can I find out more information?

You can find out more information by calling the TSCA Hotline at (202) 554-1404, or sending an e-mail to the TSCA Hotline (TSCA-Hotline@epamail.epa.gov).

For more information on the IUR, please review the Instructions for Reporting for the 2006 Partial Updating of the TSCA Chemical Inventory Database (PDF) (111 pp, 833K, About PDF).

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