Navigation Rules and Regulations Flashcards

A vessel is considered to be 'not under command' when she is?

Answer: Unable to maneuver as required by the rules due to exceptional circumstances

COLREGS Rule 3 defines a vessel not under command as one that through exceptional circumstances is unable to maneuver as required and cannot keep out of the way of another vessel.

What lights must a vessel restricted in her ability to maneuver display?

Answer: Red, white, red lights in a vertical line

COLREGS Rule 27 requires a vessel restricted in her ability to maneuver to show three all-round lights — red over white over red — in a vertical line.

Under the Navigation Rules, a 'give-way vessel' is required to?

Answer: Take early and substantial action to keep well clear

COLREGS Rule 16 requires the give-way vessel to take early and substantial action to keep well clear of the stand-on vessel.

What does a vessel display two cones apex-to-apex to indicate?

Answer: Vessel engaged in fishing

COLREGS Rule 26 requires a vessel engaged in fishing to display two cones with apexes together (diamond shape) when not at anchor.

When is a vessel considered to be 'underway' for purposes of the Navigation Rules?

Answer: When not at anchor, made fast to shore, or aground

COLREGS Rule 3 defines underway as not at anchor, made fast to shore, or aground — the vessel need not be moving.

What is the primary purpose of a Traffic Separation Scheme (TSS)?

Answer: To organize vessel traffic flow and reduce collision risk

Traffic Separation Schemes, established under COLREGS Rule 10, organize opposing traffic flow into separate lanes to reduce the risk of collision.