They did not require permits at the time as they were portable Think transport trailer sized. If you use portable power for under 365 days a year, an epa permit was not required. They changed the rules on permitting after and xAI complied

Yes, I believe it's xAI's position that they were technically in compliance at the time. I don't know that a judge would agree. The new EPA rule is more of a clarification; they do not concede that point.

what EPA?