A lawsuit over alleged pollution from gas turbines at a Memphis data center can proceed after a federal judge rejected the Trump administration’s claim that the EPA could dismiss it on its own. The ruling addresses who can bring and end Clean Air Act cases when the government is not acting to enforce the law.
Why the NAACP sued
The NAACP brought its lawsuit after unpermitted gas turbines were discovered powering Elon Musk’s Colossus data center in Memphis, Tennessee. The company, xAI, is now known as SpaceXAI following a merger.
The lawsuit asks the court to require SpaceXAI to use the best available pollution control technology when operating the turbines. It also seeks penalties of up to $124,426 per day per violation. The NAACP argued that, without those remedies, the turbines risked sharply increasing pollution in nearby neighborhoods that are predominantly Black and already vulnerable.
The case also drew attention to the use of unpermitted gas turbines to keep data center projects on schedule. Earthjustice, an environmental group supporting the lawsuit, is monitoring data center disputes nationwide. The source describes the Colossus case as the first to expose this practice in the AI industry.
The EPA’s argument and the judge’s response
Donald Trump sought to intervene and argued that the EPA could dismiss Clean Air Act lawsuits whenever the president chose not to enforce the law. In the administration’s view, allowing citizens to pursue large civil penalties against AI companies would not serve the public interest while those companies were trying to get data centers operational to support Trump’s AI Action Plan.
US District Judge Debra Brown rejected the claim. Her order said that “nothing” in the Clean Air Act allows the EPA Administrator to “unilaterally dismiss a citizen suit.” Brown described the administration’s interpretation as an “extraordinary position” with no grounding in federal law.
The law does contain a limited exception allowing the EPA to dismiss a lawsuit when it is itself suing to require enforcement or otherwise acting to require compliance. Brown said that exception did not apply: the Trump administration had made clear it did not intend to sue SpaceXAI over the alleged violations.
Why citizen suits matter in this case
The NAACP argued that the Clean Air Act is meant to ensure that air pollution standards are met and people are protected. Its position was that the law’s grant of a right to sue would make little sense if the government could also end those cases whenever it preferred not to pursue enforcement.
Brown noted that the law allows people to sue the EPA Administrator for failing to enforce the Clean Air Act. That, she reasoned, sits uneasily with the administration’s claim that citizens cannot bring cases the EPA opposes. “Evidently, Congress contemplated that citizen suits may not always align with the EPA’s judgment,” Brown wrote.
She also considered the history of a proposed amendment. In 1990, Congress considered allowing the EPA to take control of citizen suits over alleged violations. Congress did not adopt that amendment. Brown said the proposal was evidence that at least some members of the 1990 Congress believed the law as written did not give the Administrator power to intervene and terminate a citizen’s claim.
The ruling’s limits
The decision does not determine whether SpaceXAI violated the Clean Air Act or whether the requested remedies will be granted. It rejects the administration’s attempt to dismiss the citizen suit using the EPA’s intervention authority, leaving the underlying pollution allegations to be addressed through the case.
Trump also argued that civil penalties payable to the Treasury involve executive power, and that uncertainty in the statute should lead courts to dismiss the lawsuit. Brown found no ambiguity that would justify applying the constitutional avoidance principle. She wrote that “constitutional avoidance does not allow the Court to invent a right that does not exist in the statute.”
For the NAACP and communities concerned about pollution, the practical effect is that the lawsuit remains available as a means to seek enforcement when the government is not taking action. Laura Thoms, an enforcement director at Earthjustice, said the group would continue its effort to hold xAI accountable. The ruling settles the EPA’s claimed power to dismiss this suit; it does not settle the claims about the turbines.