The Chemical Data Reporting (CDR) rule, under section 8(a) of the Toxic Substances Control Act (TSCA), requires manufacturers (including importers) to provide the EPA with information, including processing and use information, on chemical substances that they manufacture (including import) above threshold production volumes. The information is collected every 4 years and the production volume threshold for reporting a chemical substance is generally 25,000 pounds for a specific reporting year. Before the next reporting period of 2020, the EPA will be revising the reporting requirements to better align with new statutory requirements resulting from TSCA as amended by the Frank. R. Lautenberg Chemical Safety for the 21st Century Act and to address submitters' feedback following the 2016 submission period and may consider reporting requirements for inorganic byproducts (RIN 2070-AK31), and may include updates to TSCA sections 8(a)(1) and 8(a)(3) standards for determining the manufacturers and processors that may qualify as small manufacturers and processors (RIN 2070-AK29).