Del. Dep't of Natural Res. & Envtl. Control v. EPA

摘要

Environmental group has standing to bring claim alleging Environmental Protection Agency acted arbitrarily and capriciously in modifying national emission standards for hazardous air pollutants for backup generators under Section 112 of Clean Air Act, because: (1) members of group allege harm that is traceable to increase in emissions resulting from standard modification that could be redressed by government action, and (2) group has associational standing to bring claim on behalf of its members.