The D.C. Circuit dismissed as moot Alaska's challenge to the Forest Service's 2001 Roadless Rule. The challenge centered on the Roadless Rule's impact on the Tongass National Forest, which the USDA exempted from the rule in 2020, but the state argued it should be allowed to proceed because the exemp...

The D.C. Circuit granted a trade group's petition to review a 2016 rule issued by EPA and the National Highway Traffic Safety Administration that set greenhouse gas emissions and fuel efficiency standards for medium- and heavy-duty engines and vehicles. The group challenged the agencies' authority t...

The U.S. Supreme Court dismissed a lawsuit brought by Mississippi against Tennessee seeking damages for a Tennessee city's pumping of groundwater from the Middle Claiborne Aquifer. Mississippi argued that the pumping siphoned water away from Mississippi and amounted to a tortious taking of groundwat...

A district court granted environmental groups' motion to preliminarily enjoin a logging project in the Willamette National Forest in areas affected by wildfires. The groups argued the Forest Service could not use the road repair and maintenance categorical exclusion (CE) to avoid NEPA review of the ...

A district court granted in part and denied in part NMFS' motion to dismiss a lawsuit seeking an expansion of the Service's 2008 Vessel Speed Rule to protect North Atlantic right whales. Conservation groups argued NMFS had unreasonably delayed its response to the groups' 2012 and 2020 petitions to e...

A district court granted in part and denied in part gasoline companies' motion for summary judgment in a lawsuit brought by the state of Maryland seeking to redress alleged contamination of its waters with methyl tertiary butyl ether. Maryland brought various common law claims and statutory claims u...

A district court granted EPA's motion to remand and vacate the Agency's 2019 decision to withdraw a proposed determination that would have restricted a copper and gold mine from using certain waters at disposal sites for dredged and fill material. The court found that neither retention of jurisdicti...

The D.C. Circuit ordered FERC to consider whether to stay a certificate for a pipeline that would carry natural gas from western Canada to a proposed export terminal in Oregon in light of the developer's decision to postpone development.
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A district court vacated and remanded EPA's 2020 Clean Water Act Section 401 Certification Rule, which limited the ability of states and Native American tribes to regulate water pollution. States, tribes, and conservation groups sought to have the rule vacated, and EPA moved to remand without vacatu...

The Court of Federal Claims entered judgment for the U.S. government in a takings challenge against FWS for rerouting spring waters that had previously flowed through church property into a restoration channel in an effort to save a native fish species. The church argued the berm FWS installed upstr...