Energy & environment · 31/10/1994Updated: 10/18/2026 · 1 min read
EPA Approves Indiana Counties for Ozone Attainment, Withdraws Earlier Rule
Summary
The US Environmental Protection Agency (EPA) has finalized the redesignation of four Indiana counties to meet the national ozone air quality standards, after withdrawing an earlier rule due to public comments and new data on ozone levels in a nearby county.