The Chemical Data Reporting (CDR) Rule, issued under the Toxic Substances Control Act (TSCA), requires manufacturers and importers to provide EPA information on the chemicals they manufacture domestically or directly import into the United States. EPA uses the data to help assess the potential human health and environmental effects of these chemicals and makes the information available to the public. The EPA only collects this data every four years so the reporting period, that opens June 1, will cover all chemical generation since 2016. It generally applies to chemicals that were manufactured or imported in a quantity of 25,000 pounds or greater per year; however, there are some specific chemicals that carry a lower reporting threshold. A Cornerstone Program Manager can be an expert resource to determine if your facility will be required to report. If the inventory quantities at a facility have not been tracked consistently over the four-year period, facilities managers may need time to consolidate all the data.  Cornerstone encourages our clients to begin this process as soon as possible to ensure compliance before the reporting deadline. The EPA uses the CDR data to support risk screening, assessments, priority setting, and management activities.  It allows EPA to construct an in-depth picture of the types, amounts, end uses, and possible exposures to chemicals in our communities. The past data is open to the public on  EPA’s website at https://www.epa.gov/chemical-data-reporting.