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Class B
Class B
Flammable fuels require a class B fire extinguisher.
Class B
Class B
Class B
Class B
B-I or B-II are required.
the base of the fire
Carbon Dioxide or foam.
Usually one or more USCG-approved Class B-I or B-II are required. According to US Coast Guard regulations (46 CFR 25.30): At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat with a permanently installed fuel tank. A UL-listed 5-B:C extinguisher, with 2 pounds of dry chemical, may provide the basis for the extinguisher, but it must ALSO conform to USCG-approvals (proper corrosion protection, labeling, mounting bracket, etc). A 4-pound CO2 extinguisher or 6 quarts foam extinguisher may also be rated for USCG B-1 service. Powerboats over 26 feet may require additional extinguishers, as detailed in the related questions. Up to 26 feet: one B-I extinguisher; Over 26 but under 40 feet: two B-I extinguishers; Over 40 feet but not over 65 feet: three B-I. Note that two B-I extinguishers may be substituted for a B-II extinguisher. NOTE: When a fixed fire extinguisher system is installed in the machinery space(s), it will replace one B-1 type portable extinguisher.
PWCs and boats up to 26 feet must carry at least one B-I fire extinguisher unless exempt (i.e., Class A or 1, open, outboard motor, not carrying passengers for hire, etc). A B-1 extinguisher may be a 2-pound dry chem, 4-pound CO2 or 6 quart foam, if properly labelled as USCG certified. Boats 26 to 40 feet must carry two B-I or one B-II. If there is a permanently installed fire extinguisher system only one B-I extinguisher is required. For vessels 40 to 65 feet, three B-I or one B-II and one B-I extinguishers are required. Vessels in this class with permanently installed fire extinguisher systems are required to carry two B-I or one B-II extinguishers. Vessels without combustible fuel onboard, no gasoline engine or no areas where vapors can be trapped are not required to carry a fire extinguisher.