U.S. Department of Defense - Missile Defense Agency

U.S. Department of Defense - Missile Defense Agency

Homeland Defense Radar, Hawaii

The National Defense Authorization Act (NDAA) Fiscal Year (FY) 2017 requires the Missile Defense Agency (MDA) to develop a plan to procure a discrimination radar, or equivalent sensor, for a location that will improve homeland missile defense for the defense of Hawai‘i. A “discrimination radar” is capable of identifying and classifying specific missile threats. The NDAA FY 2021 authorizes MDA to continue Homeland Defense Radar - Hawaii (HDR-H) radar development and siting efforts. The FY 2021 Appropriation bill provided funding to continue these efforts in FY 2021. Therefore, MDA is engaged in Advanced Planning studies and preparing an Environmental Impact Statement (EIS) for the siting and development of the HDR-H, should a deployment decision be made and is funded.

Taking into consideration operational effectiveness, technical factors and environmental consideration; and after coordination with the Cooperating Agencies and potential Host Installations, the MDA has identified the Pacific Missile Range Facility (PMRF) site as the HDR-H EIS Preferred Alternative. Based on analysis to date, the HDR-H at PMRF: (1) provides optimal missile defense system performance, and (2) minimizes mission impacts to the Host Installation.

Identification of a Preferred Alternative in the EIS does not limit the choice of reasonable alternatives analyzed in the EIS, and does not prejudice the final deployment decision, should one be made. Identification of the Preferred Alternative serves to provide the public notice as to which alternative the Agency currently favors and provides ability for the MDA to better coordinate discussions and consultations with regulatory agencies. The EIS analysis will include three alternatives: one on O‘ahu (KTA-1), one on Kaua‘i (PMRF), and a No Action Alternative.