This is an image of the project title and includes logos for the United States Department of the Navy and United States Marines Corps.

The scoping period for the Environmental Impact Statement is underway. The Navy is accepting scoping comments from April 24 to May 24, 2026. The Navy welcomes, values, and appreciates your input!

VIRTUAL SCOPING PRESENTATION
View a virtual scoping presentation to learn more about the Proposed Action, its purpose and need, the National Environmental Policy Act and National Historic Preservation Act Section 106 processes, and public involvement opportunities.

View a virtual scoping presentation to learn more about the project.

Welcome!


Welcome to the environmental planning website for the San Clemente Island Training and Testing (SCITT) Environmental Impact Statement (EIS).

This website is a resource for information on the preparation of the SCITT EIS. The Department of the Navy (including both the U.S. Navy and U.S. Marine Corps) is preparing an EIS to evaluate the potential environmental impacts of continued and expanded military readiness activities at San Clemente Island. Military readiness activities include training; research, development, testing, and evaluation (collectively referred to as “testing”); and range improvement and maintenance. The EIS will help sustain Navy and Marine Corps readiness by supporting current and future training, testing, and range improvement and maintenance requirements.

In addition to complying with the National Environmental Policy Act (NEPA), the Navy will complete consultations and coordinate as required by the National Historic Preservation Act, the Endangered Species Act, the Coastal Zone Management Act, the Clean Air Act, and other applicable laws and regulations. As part of this process, the Navy will seek the issuance of a water permit to support military readiness activities using a lightweight water purification system.

This is an image of refueling an MH-60S Sea Hawk helicopter.
This is an image of Marines training on San Clemente Island.
This is an image of a Sailor participating in a simulated indirect fire exercise.
This is an image of Marines training on San Clemente Island.

Additional information can be found in the project fact sheet, an educational video about San Clemente Island, and the virtual scoping presentation.