The Environmental Protection Agency (EPA) is approving a plan from Pennsylvania to maintain air standards in Altoona, Blair County. This plan is focused on sustaining the 1997 ozone standards as required by the Clean Air Act, ensuring air quality remains safe through to 2027. The approval includes a minor correction to previous emission data calculations, which does not affect the overall analysis. This rule will go into effect on March 11, 2021, making Pennsylvania's commitments federally enforceable.
Simple Explanation
The Environmental Protection Agency (EPA) says that Pennsylvania has a plan to keep the air safe to breathe in Altoona, Blair County by following rules that were set back in 1997. They made a tiny fix to their math about pollution, and starting March 11, 2021, this plan will help make sure the air stays nice and clean, with the rules being like a promise everyone must keep.