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EPA, GOP Weigh Options To Ease 'Background' Ozone Burden On States

July 12, 2018
EPA and Republicans in Congress are weighing options to ease the regulatory burden on states with high levels of uncontrollable “background” ozone that could hinder their attainment of federal ozone standards, including through legislation or a pending rule on steps states should take to implement the 2015 ozone standard. Levels of background ozone can approach the level of national ambient air quality standards (NAAQS) for ozone in some places, especially in the mountain West. As a result, some states might...

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