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Military Operating Areas

Published by Office for Coastal Management | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: February 07, 2026 | Last Modified: 2024-01-05T00:00:00.000+00:00
An Operating Area (OPAREA) in where national defense training exercises and system qualification tests are routinely conducted. OPAREA boundaries are formally established by national designation and by international treaty for national defense training purposes. OPAREAs allow for specific exercises and training events to be coordinated with other federal, state, and local agencies, and also the general public using the Local Notice to Mariners. The MarineCadastre.gov team worked with the Navy to provide this data, which is a subset of the Navy's Common Operating Picture for ocean planning purposes.

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