Energy & environment · 18/06/2010Updated: 10/17/2026 · 1 min read
EPA Makes Insignificance Finding for Alabama Portion of Chattanooga Tri-State Area's 1997 PM2.5 Nonattainment
Summary
The US Environmental Protection Agency (EPA) has determined that the Alabama portion of the Chattanooga, Tennessee tri-state area's 1997 PM2.5 nonattainment area is no longer required to conduct regional emissions analyses for fine particulate matter (PM2.5) and nitrogen oxides (NOx) emissions, following an insignificance finding made for transportation conformity purposes.