Document 6BrRbXMbkzVqZ3z4RN2Q0Nwv4

Message From: Eckberg, Craig [craig.eckberg@nrg.com] Sent: 4/1/2025 1:37:02 PM To: AirAction [AirAction@epa.goy] Subject:Automatic reply: Presidential Exemption: 40 CFR Part 63 Subpart UUUUU (MATS Rule: NRG Facilities - W. A. Parish, Limestone, and Powerton Electric Generating Stations Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. I am currently on business travel with limited access to phone and email until Thursday 4/3 1 will be checking email periodically and will respond as soon as I can. Sierra Club FOIA 2025-EPA-04883 ED_018388_00000361-00001 SC_EVERSPLIT0020730