BOTH INTERNATIONAL & INLAND You are approaching another vessel and are not sure whether danger of collision exists. What must you assume?

Correct Answer: Option B — there is risk of collision

Rule 7(a) states that every vessel shall use all available means to determine if risk of collision exists. If there is any doubt, such risk shall be deemed to exist. Mariners must proactively treat uncertain close-quarters situations as high-risk to ensure safety and prevent potential maritime casualties.