PUBLIC NOTICE The Department of the Air Force (DAF) is preparing an Environmental Impact Statement (EIS) to analyze potential environmental impacts associated with the proposed optimization of the Powder River Training Complex (PRTC) to support aircrew training. Proposed Action: The Proposed Action includes: (1) improvements to the airspace structure at PRTC to address shortfalls in day-to-day training for aircrews from Ellsworth and Minot Air Force Bases and (2) increasing Large Force Exercise capability at PRTC to meet threats to National Security. The PRTC airspace overlies portions of South Dakota, North Dakota, Wyoming, and Montana. Public Comments: The DAF is soliciting comments on the preliminary alternatives, environmental and social concerns, and any other relevant information, studies, or analyses that should be considered in the development of the Draft EIS. Written comments can be submitted at in-person public meetings, online at the project website (www.PRTCairspaceEIS.com), or by mailing to: PRTC Airspace EIS, c/o Stantec, 501 Butler Farm Rd., Suite H, Hampton, VA 23666. Please submit comments by September 9, 2025 to ensure sufficient time for consideration in the Draft EIS. In-Person Public Meetings: The DAF is hosting in-person meetings at various locations in North Dakota, South Dakota, Montana, and Wyoming. Please visit the project website for details. Virtual Meeting: Virtual meetings will be held on August 19, 20, and 21, 2025. Please visit the project website to register for a virtual meeting. PUBLIC NOTICE The Department of the Air Force ( DAF ) is preparing an Environmental Impact Statement ( EIS ) to analyze potential environmental impacts associated with the proposed optimization of the Powder River Training Complex ( PRTC ) to support aircrew training . Proposed Action : The Proposed Action includes : ( 1 ) improvements to the airspace structure at PRTC to address shortfalls in day - to - day training for aircrews from Ellsworth and Minot Air Force Bases and ( 2 ) increasing Large Force Exercise capability at PRTC to meet threats to National Security . The PRTC airspace overlies portions of South Dakota , North Dakota , Wyoming , and Montana . Public Comments : The DAF is soliciting comments on the preliminary alternatives , environmental and social concerns , and any other relevant information , studies , or analyses that should be considered in the development of the Draft EIS . Written comments can be submitted at in - person public meetings , online at the project website ( www.PRTCairspaceEIS.com ) , or by mailing to : PRTC Airspace EIS , c / o Stantec , 501 Butler Farm Rd . , Suite H , Hampton , VA 23666. Please submit comments by September 9 , 2025 to ensure sufficient time for consideration in the Draft EIS . In - Person Public Meetings : The DAF is hosting in - person meetings at various locations in North Dakota , South Dakota , Montana , and Wyoming . Please visit the project website for details . Virtual Meeting : Virtual meetings will be held on August 19 , 20 , and 21 , 2025. Please visit the project website to register for a virtual meeting .