Michigan has filed a lawsuit to challenge proposed federal regulations that would weaken existing vehicle fuel economy standards, arguing the changes could undermine environmental progress and consumer savings. The state joins a growing coalition of plaintiffs, including other governments and advocacy groups, who contend the new rules fail to align with climate goals and public health priorities. Legal challenges center on whether the federal government has the authority to roll back emissions standards without proper justification. Critics say the move prioritizes industry interests over long-term sustainability and economic benefits tied to cleaner vehicles.
Michigan joins suit seeking to block weaker vehicle fuel economy rules The Detroit News
