Inland · Rule 3
General Definitions
TL;DR
Defines the key vocabulary used throughout the rules: 'vessel', 'power-driven vessel', 'sailing vessel', 'restricted in ability to maneuver', 'not under command', 'underway', 'restricted visibility', etc.
Why it shows up on the exam
Most exam questions on definitions test 'vessel restricted in ability to maneuver' (RAM) vs 'not under command' (NUC) vs 'constrained by draft' (CBD).
Authoritative source
International parallel
COLREGs Rule 3 — General Definitions →More from Part A — General
Related drills
- Rule 1 — Application
- Practise Rule 2 — Responsibility
Drill Inland Rule 3
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