The US Supreme Court has granted review in four new cases, focusing on significant legal challenges. Among these, two cases pose new threats to the Environmental Protection Agency (EPA), questioning whether legal challenges to certain environmental regulations must be brought in the D.C. Circuit or if they can be filed in other courts, such as the 5th Circuit. Additionally, the court will review a state bid to resolve whether disputes over Good Neighbor ozone plans should be heard in Washington or other regional federal circuits. Another case involves the EPA's Renewable Fuel Standard program, addressing requests from small refineries to be exempt from its responsibilities. The court will also consider whether challenges to EPA actions, such as sewage dumping, can be reviewed outside of the D.C. Circuit. Furthermore, the court will address whether courts can consider a violation of supervised release during sentencing. The court also declined to hear a case challenging presidential removal protections for members of the Consumer Product Safety Commission.