California's long-standing federal exemption allowing single-occupant electric vehicles into high-occupancy vehicle (HOV) lanes is set to expire, potentially ending a key incentive for EV adoption.

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The Trump administration systematically rolled back numerous environmental regulations, impacting clean energy development and conservation efforts across the United States.

The U.S. Supreme Court ruled 7-2 in Diamond Alternative Energy v. EPA, clarifying when stakeholders can challenge agency actions based on market effects rather than direct regulation.