🔍 Key Concepts

• Definition of underway in Rule 3 – General Definitions (Navigation Rules) • Difference between not making way through the water and not underway • Situations where a vessel is not under command of the anchor, ground, or moorings

💭 Think About

• Look at each option and ask: Is this vessel still free to move in response to wind, current, or helm, or is it physically attached to something? • Consider whether the engine status (stopped or turning) by itself changes the vessel’s status under the Rules. • Think about which situations are specifically named in the Rules as conditions when a vessel is not considered underway.

✅ Before You Answer

• Verify the exact wording of the definition: ‘underway’ means not at anchor, or made fast to the shore, or aground (Rule 3). • For each choice, check: Is the vessel at anchor, made fast (tied) to anything, or aground? • Ignore whether the engine is running; focus on whether the vessel is free from attachment to the bottom or shore.