USCG Exam PracticeRule 7 — Risk of Collision
Under the Inland Navigation Rules, when must a vessel treat risk of collision as existing?
- A. Only when the compass bearing of an approaching vessel does not change and range is decreasing
- ✓ Whenever any doubt exists as to whether risk of collision is presentCorrect
- C. Only when radar confirms a constant bearing on an approaching vessel
- D. When the other vessel is within one mile and closing
Why B is correct
33 CFR §83.07(a) states that if there is any doubt, risk of collision shall be deemed to exist. Constant bearing decreasing range (CBDR) is one indicator per §83.07(d)(i), but the doubt standard is the overriding rule.
Cited:33 CFR §83.07