EPA Announces Pause to Iron and Steel Manufacturing Facility Air Regulations

What: On March 31, 2025, the United States Environmental Protection Agency (EPA) announced it is staying compliance provisions for the National Emissions Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review for 90 days.

Why: The regulation, which applies to hazardous air pollutant emissions from iron and steel manufacturing facilities, was originally published on April 3, 2024.

EPA will also be publishing a reconsideration of the rule and asking for public comment on the following issues:

  • Work practice standards for unmeasured fugitive and intermittent particulate from unplanned bleeder valve openings.
  • The opacity limit for planned bleeder valve openings.
  • Work practice standards for bell leaks.
  • The opacity limit for slag processing and handling.

Action: All April 3, 2025, deadlines in the original rule are now extended until July 1, 2025.


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