The way you get a say over a polluting facility in your community usually starts with a simple thing: a public notice and a window to comment. The federal Environmental Protection Agency has proposed making that window optional for a whole class of pollution sources, and the clock to weigh in runs out on August 21.
Public comments on the EPA’s proposal are due Thursday, August 21, 2026. Submit through Regulations.gov under Docket ID EPA-HQ-OAR-2025-1212.
What the EPA is proposing
Right now, federal rules require state and local air agencies to publish a public notice and hold a 30-day comment period before they approve air permits for “minor source” facilities. The EPA’s new proposal would remove that federal requirement and leave it to each state to decide whether, when, and for how long the public gets to comment at all. In practice, states could shorten those windows, or eliminate them.
The phrase “minor source” sounds harmless, and that is part of the problem. Minor sources include the diesel backup generators and natural gas turbines that increasingly power data centers. A facility can hold “minor source” status while running a very large number of engines, as long as it keeps its reported emissions under the threshold. The label is about paperwork category, not about how much hardware is on site.
This is not hypothetical. Look at Falls Township.
This spring the Pennsylvania Department of Environmental Protection received a plan approval application from Amazon Data Services for a data center in Falls Township, Bucks County, that would run on the order of 280 natural gas generators along with diesel backup units. The facility qualifies as a “synthetic minor” source by keeping its reported volatile organic compound and nitrogen oxide emissions under 25 tons per year through controls and fuel limits. More than 4,000 residents signed a petition about the project, and the only reason the public got a formal 30-day comment period on it is that current federal rules require one for minor sources.
That is exactly the window the EPA proposal would make optional. The same category of facility, the same kind of neighborhood concern, and no guaranteed seat at the table.
Why a water network cares about an air rule
Air permits and water are not separate conversations when it comes to data centers. These are the same facilities drawing on our rivers for cooling and our grid for power, and the public comment process is often the single best moment for a community to ask the hard questions, about water withdrawals, discharges, drought plans, and cumulative impact, and to get the answers on the record. Weaken public participation on one permit and you weaken the public’s leverage across the board.
How to comment before August 21
- Go to Regulations.gov and search Docket ID EPA-HQ-OAR-2025-1212.
- Write a short comment in your own words. A few specific, personal sentences count more than a form letter.
- Say why guaranteed public notice and comment on minor source permits matters in your community.
- Submit before Thursday, August 21, 2026.
Comment on Regulations.gov Read the proposed rule
Whatever your view of the rule, the ability to comment is the point. It takes a few minutes, and once August 21 passes, it is gone.
Details from the EPA proposed rule (Docket EPA-HQ-OAR-2025-1212, published in the Federal Register on July 7, 2026), the EPA newsroom, and Pennsylvania DEP permit filings for the Falls Township data center. Figures current as of August 2026.
