Power Sector

EPA published its final rule regulating HAPs from Coal- and Oil-Fired EGUs based on the Residual Risk and Technology Review.

EPA under the Trump administration delayed implementation of the 2015 ozone National Ambient Air Quality Standards. Under legal pressure from environmental groups, EPA under the Biden administration is working to implement the 2015 ozone NAAQS by making compliance determinations. 

The NAAQS are based solely on public health and welfare protection, meaning that the agency must not consider the cost of revising a standard if the current science demands a standard be tightened to protect public health or welfare.