Cite as: 586 U. S. ___ (2018)
15
Opinion of the Court
exclude were committed to agency discretion and therefore unreviewable, the Court of Appeals did not consider whether the Service’s assessment of the costs and benefits of designation was flawed in a way that rendered the resulting decision not to exclude Unit 1 arbitrary, capricious, or an abuse of discretion. Accordingly, we remand to the Court of Appeals to consider that question, if necessary, in the first instance. *** The judgment of the Court of Appeals for the Fifth Circuit is vacated, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
Justice Kavanaugh took no part in the consideration or decision of this case.
