A district court held that public interest and environmental groups lacked standing to challenge the "two-for-one" executive order issued by President Trump on January 30, 2017. The order requires executive branch agencies to identify two existing regulations to be repealed for every new regulation,...

The D.C. Circuit held that EPA unlawfully revoked the 1997 ozone NAAQS when it implemented the 2008 standard. In 2008, EPA set the ozone NAAQS at 75 parts per billion (ppb). In 2015, when implementing the standard, the Agency eliminated the 1997 standard of 84 ppb on the grounds that it was impossib...