Welcome to the United States (U.S.) Department of the Navy’s (Navy) official website for the Environmental Assessment/Overseas Environmental Assessment (EA/OEA) for the Mariana Islands Range Complex (MIRC) Airspace. The EA/OEA has been prepared to analyze potential environmental impacts relevant to the Navy’s proposed modification and extension of existing training airspace in the range complex, as well as the expansion of the restricted sea space around Farallon de Medinilla (FDM).
The Navy used the findings and decisions of the 2010 MIRC Environmental Impact Statement/Overseas Environmental Impact Statement (EIS/OEIS) to prepare the EA/OEA. Therefore, this EA/OEA is "tiered" off of the MIRC EIS/OEIS, which was completed with community input; a Record of Decision was signed in July 2010.
This website is intended to provide the public and interested groups or agencies with an understanding of the Navy’s proposal, the environmental resources that were analyzed in the MIRC EA/OEA, reasons why the change to the airspace and sea space is necessary, and how the public was involved in the National Environmental Policy Act (NEPA) process. In addition, this website contains information on how the Navy is employing mitigation measures to reduce environmental effects from military training and testing activities.