THE DEFINITIVE GUIDE TO 88FED

938 F.3d at 322-23 (rejecting Wisconsin's argument that it must not face good neighbor obligations with the 2008 ozone NAAQS on the basis that its emission reductions would only boost a downwind receptor by two 10-thousandths of an element for every billion). The EPA continues to neither endorse the “flexibilities” in Attachment A, nor stakes a