Assignment and Application of the “Unique Identifier” Under TSCA Section 14; Notice of Public Meeting and Opportunity To Comment

Recent amendments to the Toxic Substances Control Act (TSCA) require EPA to assign a ``unique identifier'' whenever it approves a Confidential Business Information (CBI) claim for the specific chemical identity of a chemical substance, to apply this unique identifier to other information or submissions concerning the same substance, and to ensure that any nonconfidential information received by the Agency identifies the chemical substance using the unique identifier while the specific chemical identity of the chemical substance is protected from disclosure. EPA is requesting comment on approaches for assigning and applying unique identifiers. In addition, EPA invites all interested parties to attend a public meeting to provide oral comment.