Which vessel is classified as 'restricted in her ability to maneuver' when transferring cargo while underway?

• A. Vessel underway
• B. Vessel engaged in fishing
• C. Vessel restricted in her ability to maneuver
• D. Vessel power-driven

Answer: (C)

Transferring cargo while underway places a vessel into the RAM category because the operation restricts her ability to maneuver. When cargo is being transferred, lines, equipment, and the need to maintain a steady position relative to the transfer target limit the vessel’s ability to change speed or direction. Under COLREGS, a vessel restricted in her ability to maneuver is defined as one whose work nature prevents easy maneuvering, with cargo transfer underway being a classic example. That’s why this vessel is considered restricted in her ability to maneuver, and other vessels should take appropriate action to avoid affecting her operations. The other descriptions describe vessels by their general type or propulsion, but they do not by themselves indicate a restriction in maneuverability.