• CDR is triggered by the amount of a chemical manufactured (including imported), rather than the hazard or potential exposures associated with a chemical.
• To submit Form U electronically to EPA, a person must register with the CDX and be approved by EPA.

Reporting thresholds

Chemical Data Reporting (CDR) is triggered by the amount of a chemical manufactured (including imported), rather than the hazard or potential exposures associated with a chemical. Understanding reporting thresholds of manufactured (including imported) chemicals that trigger reporting is important when using and interpreting CDR data. The thresholds are as follows:

• 25,000 pounds or greater — Reporting for 2016 and future submission periods is triggered based on whether site-specific production volume meets or exceeds 25,000 pounds during any calendar year since the last principal reporting year. For the 2024 submission, the last principal reporting year was 2019 and therefore the submitter considers annual production from 2020 to 2023.
• 2,500 pounds or greater — For chemicals subject to certain Toxic Substances Control Act (TSCA) actions, the production volume reporting threshold was lower, and for those chemicals the submitter considers whether the annual production volume meets or exceeds 2,500 pounds.
• For all reportable chemicals, manufacturers (including importers) are required to report the full manufacturing data for the principal reporting year (e.g., calendar year 2019 for 2020 CDR and calendar year 2023 for 2024 CDR) and production volume for each calendar year since the previous principal reporting year (e.g., 2016 to 2019 for 2020 CDR and 2020 to 2023 for 2024 CDR).

Due to these reporting thresholds, totals of CDR production volumes reported may underestimate the actual total amount manufactured and imported in the U.S., particularly if there are a substantial number of sites that manufacture (including import) the chemical in quantities less than 25,000 pounds per year or are otherwise exempted from reporting (such as small manufacturers). When comparing changes in production over time at a site, particularly on regional or national levels, it is important to take into account regulatory changes in the reporting thresholds across the years.

How to report

To submit Form U electronically to the Environmental Protection Agency (EPA), a person must register with the Central Data Exchange (CDX) and be approved by EPA.

• Register on CDX — To register for CDR reporting, go to the CDX website and register under the program “Submissions for Chemical Safety and Pesticide Programs (CSPP).” If previously registered on CDX for e-TSCA, e-PMN, or TRI, an individual is then able to add the CDR reporting flow to the current registration.
• Access e-CDRweb — An individual can access this agency-provided electronic reporting tool used to complete Form U after registering in CDX. Access e-CDRweb through the CSPP portal.
• Complete and submit the completed electronic Form U.

If there are technical issues or problems regarding CDX registration, the individual should contact the CDX Help Desk at helpdesk@epacdx.net or (888) 890-1995. International callers who wish to contact the Help Desk should call (970) 494-5500.