The Third Circuit vacated and remanded EPA's approval of Pennsylvania's 2014 regional haze SIP. CAA §169A requires states to evaluate the impact that emissions from certain sources of pollution within their borders have on atmospheric visibility in national parks and wilderness areas, known as Clas...

The Ninth Circuit held that California's commercial fishing fees for nonresidents violates the Privileges and Immunities Clause of the U.S. Constitution. California's commercial fishing license fees are significantly higher for out-of-state fishers than for residents. For example, California residen...

The Ninth Circuit held that the U.S. Forest Service's continued authorization of a 6-foot-tall Jesus statue on national forest land overlooking a northwestern Montana ski resort does not violate the Establishment Clause of the U.S. Constitution. The statue, known as "Big Mountain Jesus," was placed ...

The Fifth Circuit reversed an oil company's convictions for violating the CAA and Migratory Bird Treaty Act (MBTA) in connection with its wastewater treatment system at its Corpus Christi refinery. The company was convicted for knowingly operating two uncovered tanks as oil-water separators without ...

The D.C. Circuit reaffirmed its prior decision that the Securities and Exchange Commission's (SEC's) "conflict materials" rule violates the First Amendment. SEC issued the rule in 2012 pursuant to §1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act, which requires SEC to issue re...

The Seventh Circuit upheld EPA's approval of revisions to Illinois' SIP, thereby rejecting challenges raised by Indiana. Indiana argued that the relaxation of Illinois' vehicle emissions testing program will decrease the likelihood that the Chicago area—which includes two Indiana counties—will a...

A district court held that it lacks jurisdiction over Oklahoma's lawsuit against EPA challenging its proposed emission standards for coal-fired power plants. The state argues that the proposed emission standards, if adopted as a final rule, would constitute an ultra vires action in violation of the ...

The D.C. Circuit, on remand from the U.S. Supreme Court, invalidated EPA's 2014 emissions budgets under the transport rule, also known as the Cross-State Air Pollution Rule, as applied to various states. The CAA's "good neighbor" provision requires upwind states to prevent sources within their borde...

The D.C. Circuit denied petitions challenging an EPA regulation that revised the NESHAP for hexavalent chromium, a carcinogenic compound that gets emitted into the air during the chrome-finishing process. The new rule, issued in 2012, imposes more stringent emissions limitations than its predecessor...