On February 24, 2022, EPA announced that is revoking the process for correcting the substance identities of substances that were incorrectly described when they were listed on the initial TSCA Inventory in 1978. Guidelines for Inventory correction were published in 1980 when the Agency recognized that a number of the substances reported to the initial Inventory had been unintentionally, incorrectly described. Starting on April 26, 2022, companies will be required to submit a premanufacture notice (PMN) in order to request a change to the chemical identity of a substance listed on the Inventory. Until that time, EPA will continue to accept correction requests that meet the 1980 guidelines.
In its announcement, EPA noted that the 1980 guidelines did not identify a time period during which corrections to the Inventory could be submitted. However, EPA stated they never intended for the correction period to be indefinite, noting that companies have had more than 40 years since the 1980 publication of the revised TSCA Inventory to make corrections.
EPA stated they will continue to initiate Inventory corrections for substances that it determines were unintentionally misidentified. For those cases, EPA may request information from a company to support an Inventory correction in lieu of requiring a PMN. The announcement noted that the revocation will not affect regular maintenance of the Inventory which does include updates to substance identity nomenclature.