Under the "Vessel Bridge-to-Bridge Radiotelephone Act" the frequency for bridge-to-bridge communications is 156.65 MHz or channel __________.

Correct Answer: Option B — 13

33 CFR 26.03 designates Channel 13 (156.65 MHz) as the primary frequency for bridge-to-bridge navigational communications. This channel is specifically reserved for ship-to-ship safety and maneuvering coordination, allowing vessels to discuss passing arrangements and navigational intentions without cluttering the distress and calling frequency, Channel 16.