Regulation & law · 26/09/2005Updated: 10/17/2026 · 1 min read

EPA Approves Indiana's Plan to Reduce Sulfur Dioxide Emissions in Lake County

The US Environmental Protection Agency (EPA) has approved a State Implementation Plan (SIP) revision for Lake County, Indiana, to control sulfur dioxide (SO2) emissions, and redesignates the area to meet national air quality standards, as part of a broader effort to improve air quality in the region.