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Fact Sheet

Project Overview Fact Sheet

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Final EIS/OEIS and Supporting Documents

Final Hawaii-California Training and Testing EIS/OEIS Readers Guide

HCTT Readers Guide

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  • The Readers Guide provides a general summary of the Final EIS/OEIS.
  • The Readers Guide provides key changes from the Draft EIS/OEIS to the Final EIS/OEIS.

Final Hawaii-California Training and Testing EIS/OEIS (October 2025) by Volume

2025 Hawaii-California Training and Testing Final Environmental Impact Statement/Overseas Environmental Impact Statement

Volume

Volume 1 (Abstract - Chapter 6 Regulatory Considerations)

Volume 2 (Appendix A - Appendix C)

Volume 3 (Appendix D - Appendix F)

Volume 4 (Appendix G - Appendix K)

Volume 5 (Appendix L - N )

Final Hawaii-California Training and Testing EIS/OEIS (October 2025) by Sections

Section

Technical Reports

Dive Distribution and Group Size Parameters for Marine Species Occurring in the U.S. Navy’s Atlantic and Hawaii-California Training and Testing Study Areas (August 2024)Dive Distribution and Group Size Parameters for Marine Species Occurring in the U.S. Navy’s Atlantic and Hawaii-California Training and Testing Study Areas
(August 2024)
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Quantifying Acoustic Impacts on Marine Mammals and Sea Turtles: Methods and Analytical Approach for Phase IV Training and Testing (September 2024)Quantifying Acoustic Impacts on Marine Mammals and Sea Turtles: Methods and Analytical Approach for Phase IV Training and Testing (September 2024)
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Criteria and Thresholds for U.S. Navy Acoustic and Explosive Effects Analysis (Phase 4) (April 2025)Criteria and Thresholds for U.S. Navy Acoustic and Explosive Effects Analysis (Phase 4) (April 2025)
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U.S. Navy Marine Species Density Database Phase IV for the Hawaii-California Training and Testing Study Area (September 2025)U.S. Navy Marine Species Density Database Phase IV for the Hawaii-California Training and Testing Study Area - Revised (September 2025)
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Information Repositories

Print copies of the Final EIS/OEIS are available at the following libraries:

Please check with the library regarding its hours of operation and availability of the document.

If you have questions or would like additional information, please contact:

Naval Facilities Engineering Command Pacific
Attention: HCTT EIS/OEIS Project Manager
258 Makalapa Drive, Suite 100
Pearl Harbor, HI 96860-3134