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AhaBulb: Stuff Everyone Should Know · ahabulb.com/boat-fog-hear-signal-slow-down

In fog, you hear another boat's fog signal apparently ahead of your beam. What does Rule 19 say to do?

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  1. Speed up to clear the area quickly
  2. Turn hard to port right away
  3. Slow to the minimum speed that keeps you on course

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References

  1. 33 CFR 83.19, Conduct of vessels in restricted visibility (Rule 19) www.ecfr.gov/current/title-33/section-83.19 Checked 2026-10-09.

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