What is the length threshold mentioned for narrow-channel rules?

What is the length threshold mentioned for narrow-channel rules?

• A. 20 Meters
• B. 15 Meters
• C. 25 Meters
• D. 30 Meters

Answer: (A)

In narrow channels, there’s a specific length at which the stricter navigation rules kick in. That threshold is 20 meters. So vessels that are 20 meters in length or longer must follow the narrow-channel guidance—keeping as near as practicable to the outer limit of the channel on the starboard side and avoiding impeding traffic when meeting another vessel. This 20‑meter line is the standard figure used in many training materials, which is why it’s the best answer. The other numbers don’t match the commonly cited threshold for these rules.

In narrow channels, there’s a specific length at which the stricter navigation rules kick in. That threshold is 20 meters. So vessels that are 20 meters in length or longer must follow the narrow-channel guidance—keeping as near as practicable to the outer limit of the channel on the starboard side and avoiding impeding traffic when meeting another vessel. This 20‑meter line is the standard figure used in many training materials, which is why it’s the best answer. The other numbers don’t match the commonly cited threshold for these rules.