On December 1, 2022, the U.S. Environmental Protection Agency (EPA) proposed a rule titled ``New Source Performance Standards Review for Secondary Lead Smelters.'' The EPA is extending the comment period on this proposed rule that currently closes on January 17, 2023, by 15 days. The comment period will now remain open until February 1, 2023, to allow additional time for stakeholders and Tribal Nations to review and comment on the proposal.