A self-propelled tank vessel of at least 10,000 gross tons as measured under , or an alternate tonnage measured under as prescribed by the Secretary under shall be equipped with—

((1)) a dual radar system with short-range and long-range capabilities, each with true-north features;

((2)) an electronic relative motion analyzer that is at least functionally equivalent to equipment complying with specifications established by the Secretary of Transportation;

((3)) an electronic position-fixing device;

((4)) adequate communications equipment;

((5)) a sonic depth finder;

((6)) a gyrocompass; and

((7)) up-to-date charts.