Homeland Defense Over-the-Horizon Radar
at Northwest Region United States
Environmental Impact Statement

A diagram depicting transmission of radio signals for radar from a transmitter. They go up to the ionosphere, back down to the earth's surface, and, if it hits an object, it bounces back to the ionosphere and then to the receiver.

The Draft Environmental Impact Statement (EIS) public comment period closed September 19, 2026. DAF appreciates your participation in the National Environmental Policy Act (NEPA) process.

On April 18, 2025, the Department of the Air Force (DAF) announced the intent to develop an EIS, which began the public scoping period. During the scoping period, comments on the project, resources to be analyzed and other information related to the scope of the EIS were solicited. Tribal governments; federal, state, and local agencies; organizations; special interest groups; and individuals were invited to be involved in the scoping process and were encouraged to submit written comments to assist with identifying alternatives or providing information to inform the analysis.

DAF held five in-person public scoping meetings and one virtual public scoping meeting to inform the public about the Proposed Action and accept comments on the scope of the analysis. During the “open house” in-person public scoping meetings, project team members were available to provide information, and the public was encouraged to provide comments. 

Five in-person public scoping meetings, and one virtual meeting were held during the scoping period, as follows:

TUESDAY, MAY 6, 2025:
5-7 pm Mountain Time
at American Legion Hall Post 101
715 S 3rd Street, Mountain Home, ID 83647

WEDNESDAY, MAY 7, 2025:
5-7 pm Pacific Time
at McDermitt Community Hall
135 Oregon Road, McDermitt, NV 89421

THURSDAY, MAY 8, 2025:
5-7 pm Mountain Time
at Four Rivers Cultural Center
676 SW. 5th Avenue, Ontario, OR 97914

TUESDAY, MAY 13, 2025:
5-7 pm Pacific Time
at Christmas Valley Community Hall
87345 Holly Lane, Christmas Valley, OR 97641

WEDNESDAY, MAY 14, 2025:
5-7 pm Pacific Time
at Harney County Chamber of Commerce
484 North Broadway Avenue, Burns, OR 97720

MONDAY, MAY 19, 2025:
5-7 pm Mountain Time
Virtual Meeting
Virtual Public Scoping Meeting Video