11
Application
Rules in this Section apply to vessels in sight of one another.
Rule 11 states that the rules in Section II (Rules 11–18) apply only to vessels in sight of one another. Two vessels are "in sight" when one can be observed visually from the other. Radar observation alone does not constitute being "in sight."
Key Takeaways
1
Section II only applies when vessels can see each other visually
2
Radar contact alone does not mean vessels are 'in sight'
3
In restricted visibility, Section III (Rule 19) applies instead
Common Mistakes
Applying crossing or overtaking rules when only detected on radar
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