Document 2qZRXrQLDknrjpkmE91VEZdqg

TALEN ENERGY NortMestent Energy - 12 - March 28, 2025 W. COVCI.USIO\ Ialcn Montana and NorthWestern appreciate the opportunity to submit its request to exempt Colstrip from the 2024 MATS Rule. Talen Montana and NorthWestern respectfully request that the President exercise his discretion to exempt Colstrip from the 2024 MATS Rule. Respectfully submitted, ohn Wander General Counsel Talen Energy Corporation Ialcn Montana, LLC. Shannon Heim General Counsel, Vice President, Federal Governmental Affairs and FERC Compliance Officer NorthWestern Corporation d/b/a NorthWestern Energy Enclosures: Exhibit 1 Talen Montana Comments Exhibit 2 -- North Western Comments Exhibit 3 Lebsack Declaration (including Attachments A to C) Exhibit 4 -- Hines Declaration Sierra Club FOIA 2025-EPA-04883 ED_018388_00000306-00012 SC_EVERSPLIT0006096