EPA proposes ending public notice for minor air pollution permits, drawing opposition from environmental groups

The U.S. Environmental Protection Agency (EPA) has proposed eliminating a federal rule requiring public notice and comment periods for minor sources of air pollution, a move critics say would allow data center developers and other industries to avoid public scrutiny during the permitting process. The proposed change would shift responsibility for public notification to state and local air agencies, which advocates argue may forgo the process entirely.

The EPA’s announcement in July framed the change as reducing federal "red tape," asserting that state and local authorities are better positioned to manage permitting decisions. The agency described the affected sources as having "relatively low emissions and limited environmental impact," though opponents dispute this characterization.

Environmental and health groups, including the Southern Environmental Law Center (SELC) and the NAACP, argue that public comment periods provide critical insight into the local impacts of new facilities. They warn that removing federal requirements could deprive permitting agencies of community input needed to assess cumulative pollution effects. Nearly 200 groups filed comments opposing the proposal last week.

The proposal targets the New Source Review permitting process, a framework established in the 1970s that applies to a range of facilities, including landfills, paper mills, and power plant expansions. In recent years, data centers—particularly those tied to AI infrastructure—have become a flashpoint for opposition due to their energy demands and pollution concerns.

For example, xAI’s Colossus 1 data center in Tennessee applied for a minor source permit in 2025, which led to a public hearing and thousands of comments after a local health department posted a notice. The same year, the SELC and NAACP threatened legal action against xAI for installing unpermitted gas turbines at the site.

The EPA’s spokesperson confirmed the agency is reviewing over 4,900 public comments submitted during the comment period, which ended last week. The agency has not indicated when it plans to finalize the rule.