Regulation & law · 07/12/2011Updated: 10/17/2026 · 1 min read
EPA Approves Indiana's Air Quality Plan for Lake and Porter Counties
Summary
The Environmental Protection Agency (EPA) has approved several actions related to air quality in Lake and Porter Counties, Indiana, and the Chicago-Gary-Lake County, Illinois-Indiana nonattainment area, to meet the 1997 annual fine particulate matter standard.
Original source language: Federal Register — All DocumentsOpen original release →