Home
Welcome
Commander United States Pacific Fleet Naval Sea Systems Command Naval Air Systems Command SPAWAR Office of Naval Research Science & Technology

Welcome to the United States (U.S.) Department of the Navy's Hawaii-Southern California Training and Testing Environmental Impact Statement (EIS)/Overseas Environmental Impact Statement (OEIS) website, an online resource for information concerning the training and testing activities within the in-water areas from Hawaii to the coast of Southern California.

The U.S. Navy invites you to participate in the National Environmental Policy Act (NEPA) process for the Hawaii-Southern California Training and Testing Environmental Impact Statement/Overseas Environmental Impact Statement (EIS/OEIS). The Navy has prepared a Final EIS/OEIS to ensure the consideration of potential environmental effects from naval at-sea training and testing activities in the Navy’s Hawaii-Southern California Training and Testing Study Area.

THE NATIONAL MARINE FISHERIES SERVICE HAS PROVIDED A CORRECTED BIOLOGICAL OPINION
The National Marine Fisheries Service identified several inadvertent factual errors and omissions in their original HSTT Biological Opinion of December 2013, and provided a corrected copy to the Navy. The corrections are not the result of new analyses, and reinitiation of consultation with the Navy is not required. The corrected Biological Opinion (April 2014) may be downloaded by clicking here.

HSTT EIS/OEIS Study Area Map

Announcements
Signed Record of Decision Available for Download - Monday, December 23, 2013
A copy of the signed record of decision for the Final Hawaii-Southern California Training and Testing EIS/OEIS may be downloaded by clicking here.
Signed Letters of Authorization for Training and Testing - Monday, December 16, 2013
The signed Letter of Authorization for Training activities and the signed Letter of Authorization for Testing activities are available for download by clicking the respective links above. They are also located in the Documents and References area.
Final Biological Opinion and Final Rule Available for Download - Monday, December 16, 2013
A copy of the Hawaii-Southern California Training and Testing Biological Opinion may be downloaded by clicking here. The Hawaii-Southern California Training and Testing Final Rule may also be downloaded by clicking here.
The HSTT Final EIS/OEIS has been Revised - Saturday, September 28, 2013

The Department of the Navy has corrected Appendix E (found in Volume III) of the HSTT Final EIS/OEIS, by including an 11-page section E.5 that was inadvertently omitted from the original Final EIS/OEIS. In addition, the wait period has been extended 30 days and will now close on 28 October 2013.

The revised Appendix E is available for download by clicking here.
The revised Volume III is available for download by clicking here.

The Navy notified stakeholders of this revision by distributing a notification letter. The notification letter is available for download by clicking here.

Notice of Availability Correction - Friday, September 27, 2013
The Hawaii-Southern California Training and Testing Final EIS/OEIS Correction Notice of Availability has been published in the Federal Register. A copy of the notice is available for download by clicking here.
Notice of Availability - Friday, August 30, 2013
The Hawaii-Southern California Training and Testing Final EIS/OEIS Notice of Availability has been published in the Federal Register. A copy of the notice is available for download by clicking here.
Final EIS/OEIS Available for Download - Thursday, August 22, 2013
The Hawaii-Southern California Training and Testing Final Environmental Impact Statement/Overseas Environmental Impact Statement is available for download on the Final EIS/OEIS page.
The Revised Marine Mammal Stranded Report has been posted. - Thursday, February 21, 2013
National Marine Fisheries Service Marine Mammals Protection Act Proposed Rule - Thursday, January 31, 2013
The National Marine Fisheries Service Marine Mammals Protection Act Proposed Rule for takes of marine mammals incidental to U.S. Navy Training and Testing Activities in the Hawaii-Southern California Training and Testing Study Area was published in the Federal Register 31 January 2013. The published PDF version is available for review on the Federal Register web site.
National Marine Fisheries Service Marine Mammals Protection Act Proposed Rule - Friday, January 25, 2013
The National Marine Fisheries Service Marine Mammals Protection Act Proposed Rule for takes of marine mammals incidental to U.S. Navy Training and Testing Activities in the Hawaii-Southern California Training and Testing Study Area was filed 25 January 2013. It will be published in the Federal Register on 31 January 2013. The pre-publication PDF version is available for review from the Federal Register website.
Public Commenting has closed - Tuesday, July 10, 2012
The HSTT Draft EIS/OEIS commenting period was open for 60 days from May 11, 2012 to July 10, 2012. All comments are currently being reviewed by the Navy, for inclusion in the Final EIS/OEIS.
Fact Sheet Booklet and Posters Available - Monday, June 04, 2012
The HSTT Draft EIS/OEIS Fact Sheet Booklet and Poster are available for review and download in the Documents and References section.
Notice of Availability Correction - Tuesday, May 22, 2012
A revision to the Notice of Availability has been posted in the Federal Register. The correction changed the end date of the comment period from 6/25/12 to 7/10/12. A copy of the notice is available for download by clicking here.
Notice of Availability - Friday, May 11, 2012

The Hawaii-Southern California Training and Testing EIS/OEIS Notice of Availability has been published in the Federal Register. A copy of the notice is available for download by clicking here.

Notice of Public Meetings - Friday, May 11, 2012

The Hawaii-Southern California Training and Testing EIS/OEIS Notice of Public Meetings has been published in the Federal Register. A copy of the notice is available for download by clicking here.

Draft EIS/OEIS Available for Download - Friday, May 04, 2012
The Hawaii-Southern California Training and Testing Draft Environmental Impact Statement/Overseas Environmental Impact Statement is available for download on the Draft EIS/OEIS page.
Supporting Technical Documents Available for Download - Friday, May 04, 2012
Several technical support documents are available on the Supporting Technical Documents page.
Informational Video - Wednesday, August 04, 2010

An informational video related to the U.S. Navy's Hawaii-Southern California Training and Testing EIS/OEIS is now available.

read more ...