Which VHF channel should you avoid using as a working channel?

Official USCG Answer & Rule Citation

Correct Answer: Option D — 16

VHF Channel 16 must remain free of routine traffic to ensure continuous monitoring for distress calls. Operators are strictly prohibited from using Channel 16 as a working channel for prolonged conversations.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.