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All vessels are required to have a Type B fire extinguisher(s) on board if one or more of the following conditions exist:

  • Inboard or stern-drive engine
  • Closed compartments where portable fuel tanks may be stored
  • Closed storage compartments in which flammable or combustible materials may be stored
  • Enclosed living spaces
  • Double-walled hulls not sealed or not completely filled with flotation material
  • Permanently installed fuel tanks

Approved types of fire extinguishers are identified by the following marking on the label—“Marine Type USCG Approved”—followed by the type and size symbols and the approval number.