SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/boat-regulatory-square-information

An orange square on a white sign or buoy gives you what?

Directions or instructions, lettered inside.

  1. A keep-out warning
  2. Directions or information ✔
  3. A danger warning

Why: 33 CFR 62.33 says a square or rectangle contains directions or instructions lettered inside the shape. It informs rather than warns or restricts.

Huh, didn't know that: Special marks are solid yellow and point out areas such as anchorages or cable and pipeline areas.

The dad joke
Why did the square sign never get lost? It always had directions.
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Sources

  1. 33 CFR 62.33 Information and regulatory marks (eCFR) https://www.ecfr.gov/current/title-33/section-62.33
  2. 33 CFR 62.31 Special marks (eCFR) https://www.ecfr.gov/current/title-33/section-62.31

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That's stuff everyone should know.