Rules of the Road · Risk of Collision — Scanty Information
Rule 7(c) cautions that assumptions shall not be made on the basis of:
- AVisual bearings taken by a qualified lookout
- BAIS target data
- CScanty information, especially scanty radar information✓ Correct
- DSound signals heard in fog
Explanation
Assumptions shall not be made on the basis of scanty information, especially scanty radar information. Proper use of radar includes long-range scanning and systematic plotting or equivalent observation.
Authority: COLREGS/Navigation Rules, Rule 7(c)
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