In a head-on situation, what maneuver should both vessels take?

• A. Alter course to port to pass on the starboard sides.
• B. Alter course to starboard to pass on the port sides of each other.
• C. Reduce speed to zero.
• D. Continue on current track.

Answer: (B)

In a head-on situation, the safety rule is that both vessels should alter course to starboard so they pass on the other vessel’s port side. Turning to starboard (to the right) creates a predictable, uniform maneuver for both boats and avoids crossing paths or confusion about who should turn which way. Passing on the port side is the standard outcome of that action, keeping you on the correct side relative to the other vessel.

Reducing speed to zero isn’t required by the regulation and won’t guarantee safety if the other vessel doesn’t slow or turn. Continuing on your current track would risk collision, since neither vessel would be altering course. Turning to port would not achieve the mandated passing side and could lead to an unsafe situation if the other vessel also turns differently.