It's the Law

Fire Extinguishers


All vessels are required to have a Type B, USCG–approved fire extinguisher on board if one or more of the following conditions exist:

  • Inboard/outboard or inboard engine
  • Closed compartments
  • Closed living spaces
  • Closed compartments, including under raised or false floors, in which flammable or explosive gases or vapors may become entrapped
  • 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.

Fire Extinguisher Requirements

Classification Foam Carbon Dioxide Dry Chemical
type & size minimum gallons minimum pounds minimum pounds
B-I 4 2
B-II 15 10
Length of Vessel Without Fixed System With Fixed System*
Less than 16 ft. one B-I none
16 ft. to less than 26 ft. one B-I none
26 ft. to less than 40 ft. two B-I or one B-II one B-I
40 ft. to less than 65 ft. three B-I or one B-II and one B-I two B-I or one B-II

* refers to a permanently installed fire extinguisher system