NRDC v. U.S. EPA

<> NRDC v. U.S. EPA - 3/11/15. In the U.S. Court of Appeals, Ninth Circuit, Case No. 13-70544. In the case environmental groups challenge a rule of the South Coast Air Quality Management District. The Panel ruled, ". . .we hold today that EPA reasonably found that § 172(e) contains an ambiguous gap. We also hold that EPA's interpretation of that ambiguity was reasonable – i.e., that the CAA's anti-backsliding provision, allowing for not less stringent alternative controls, applies when air quality standards have been strengthened as well as when they have been relaxed. We deny the petition for review."