Proposed rule · 2025-04653

National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review; Comment Period Extension

On January 22, 2025, the U.S. Environmental Protection Agency (EPA) proposed a rule titled "National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Sources Technology Review." The EPA is extending the comment period on this proposed rule, which was scheduled to close on March 24, 2025. The comment period will now remain open until April 14, 2025, to allow additional time for stakeholders to review and comment on the proposal.