ms. sridharan: thank you. chief justice roberts: ms. stetson. ms. stetson: mr. chief justice, and may it please the court: epa's authory der the good neighbor provision is limited to regulating ste's emissions that contribute significantly to downwind non-attainment. if epa is regulating beyonth authority, it is regulating beyond the statute. ms. sridharan has explained the deficiencies in a broken rule in which 90 percent of power plant emissions, 75 percent of total emissions, have been taken out t plan. but the court also asked wheer e emissions controls in the rule are reasonable regardss of the number of states that are involved. the answer is no for three primary reasons. first, the rule sectely ignores eme homer's cost-effectiveness framework. second, the rule over-controls acss number of industries. d, third, the rule imposes an impossible compliance timeline that will resultn liability issues across the country. i welcome the court's questions. justice thasi think one of the concerns we have is that so much of this seems to depend o the interdependence