A district court upheld a NMFS biological opinion (BiOp) concluding that EPA's registration decisions under FIFRA for three insecticides—chlorpyrifos, diazinon and malathion—were likely to jeopardize the continued existence of 27 protected species of salmon and steelhead fish and would destroy o...

The D.C. Circuit upheld an EPA rule issued in 2010 that amends and clarifies transportation conformity regulations as they pertain to hot spot analyses in particulate matter (PM) nonattainment and maintenance areas. Transportation conformity is required under the CAA to ensure that new federally sup...