Naval co-operation and guidance for shipping

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Naval co-operation and guidance for shipping (NCAGS) is a naval doctrinal term. Naval personnel are trained to carry out NCAGS establish and provide advice for safe passage of merchant ships worldwide, during times of peace, tension, crisis and war. NCAGS personnel act as a liaison between military commanders and the civil authorities. During war, the NCAGS organization may be responsible for establishing a convoy. NCAGS is used by many NATO countries during exercises such as Bell Buoy. NCAGS has been an important part of the naval reserves.

Previously, the doctrinal term used was naval control of shipping.

NCAGS is often a joint effort between countries, and NATO maintains a dedicated NCAGS presence at the NATO Shipping Centre, part of Allied Maritime Command in Northwood, UK. It conducts multinational exercises to strengthen ties between national navies and the civilian shipping industry.^[1]

NCAGS exercises such as Exercise Lucky Mariner test NCAGS skills.^[2]

NCAGS can sometimes be confused with Allied Worldwide Navigational Information System (AWNIS),^[3] which is a completely different set of skills in this area.