The U.S. Environmental Protection Agency (EPA) announced on January 31, 2025, that it is extending the public comment period on the draft risk evaluation for 1,3-butadiene under the Toxic Substances Control Act (TSCA). 90 Fed. Reg. 8798. Comments that were due February 3, 2025, are now due March 5, 2025. EPA states in its announcement that to give the peer reviewers on the Science Advisory Committee on Chemicals (SACC) time to review any additional comments received, it is in the process of rescheduling the February 4, 2025, virtual preparatory meeting and the February 25-28, 2025, peer review meeting for the draft risk evaluation. EPA will announce the new dates for these meetings once they have been selected.
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