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In the 1-10-1 cold water guideline taught in many boating courses, what does the 10 stand for?

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  1. 10 seconds before you start to gasp
  2. 10 hours until you must be rescued
  3. About 10 minutes of useful muscle movement

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References

  1. USCG, A Boater's Guide to the Federal Requirements for Recreational Boats (2023) www.uscgboating.org/assets/1/AssetManager/Boaters-Guide-to-Federal-Requirements-for-Receational-Boats-20231108.pdf Checked 2026-10-08.
  2. National Center for Cold Water Safety www.coldwatersafety.org/1-10-1-myth Checked 2026-10-08.

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