AUGUSTA, Maine — Maine could become the first U.S. state to impose a temporary ban on artificial intelligence data centers under legislation now awaiting Governor Janet Mills’ signature. The proposed moratorium would halt new AI data center construction for 13 months while state regulators study their environmental and economic impacts.
The bill passed Maine’s Democratic-controlled legislature last week with bipartisan support. Supporters argue the pause is necessary to assess potential strains on local power grids and water resources from energy-intensive computing facilities. “We’re seeing other states get caught flat-footed by these massive facilities,” said a legislative staffer involved in drafting the bill who requested anonymity. “This gives us time to develop proper guardrails.”
Opposition has emerged from tech industry groups and some Republican lawmakers who warn the measure could scare away tech investment. The Maine Chamber of Commerce estimates three proposed data center projects representing $800 million in potential investment hang in the balance.
Governor Mills, a Democrat facing a competitive Senate primary, has not indicated whether she will sign the bill. Analysts suggest her decision could hinge on whether the legislation includes provisions allowing existing projects to proceed. The governor’s office declined to comment on pending legislation.
If enacted, Maine’s move could inspire similar actions in other states grappling with how to regulate AI infrastructure. Vermont and Oregon are already considering comparable measures, according to policy analysts tracking the issue.