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AhaBulb: Stuff Everyone Should Know · ahabulb.com/boat-power-under-12m-lights

A powerboat under 12 meters (39.4 feet) may show which lights instead of the full set?

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  1. Only a flashing yellow light
  2. Two red lights in a vertical line
  3. An all-round white light and sidelights

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References

  1. 33 CFR 83.23, Inland Navigation Rule 23 www.ecfr.gov/current/title-33/section-83.23 Checked 2026-10-09.

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