COLREG Lights and Shapes

Vocabulary practice flashcards covering COLREG vessel statuses and their corresponding light mnemonics.

Trawling

A vessel condition remembered by the lights mnemonic: "Green over white, trawling at night".

Aground

A vessel condition remembered by the lights mnemonic: "Anchor Ights with two red, stuck on seabed".

Fishing

A vessel condition remembered by the lights mnemonic: "Red over white, fishing tonight".

Not Under Command

A vessel condition remembered by the lights mnemonic: "Red over read, captain is dead".

Constrained by Her Draught

A vessel condition remembered by the lights mnemonic: "When red lights are three, it is CBD".

Sailing

A vessel condition remembered by the lights mnemonic: "Red over green sailing machine".

Restricted in Her Ability to Maneuver

A vessel condition remembered by the lights mnemonic: "Red white red, restricted".

COLREG Lights and Shapes

A maritime framework specifying navigation lights, day shapes, and day flags for vessel states including Trawling, Aground, Fishing, Not Under Command, Constrained by Her Draught, Sailing, At Anchor, Pilot, Mine Clearance, Restricted in Her Ability to Maneuver, and Dredger.