At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:
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).
One type B-1 is required under USCG regs.
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At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:"motorboats less than 26 feet in length,propelled by outboard motors andnot carrying passengers for hire, need not carry such portable fire extinguishers ifthe construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors" [bullets added]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).
Fuel tanks are installed in wings. (flexible Rubber tanks).
oneAt least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:"motorboats less than 26 feet in length,propelled by outboard motors andnot carrying passengers for hire, need not carry such portable fire extinguishers ifthe construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors" [bullets added]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).Read more: How_many_fire_extinguishers_are_requires_for_an_18-_foot_powerboat_with_installed_fuel_tanks
Class B
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At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:"motorboats less than 26 feet in length,propelled by outboard motors andnot carrying passengers for hire, need not carry such portable fire extinguishers ifthe construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors" [bullets added]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).1
At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:"motorboats less than 26 feet in length,propelled by outboard motors andnot carrying passengers for hire, need not carry such portable fire extinguishers ifthe construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors" [bullets added]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).
According to US Coast Guard regulations: Fire extinguishers are required if any one or more of the following conditions exist (with certain exceptions): 1. Closed compartment under thwarts and seats wherein portable fuel tanks may be stored. 2. Double bottoms not sealed to the hull or which are not completely filled with flotation material. 3. Close living spaces. 4. Closed stowage compartments in which combustible or flammable materials are stowed. 5. Permanently installed fuel tanks. Exceptions: Boats under 26 feet, with only outboard motors, with "the construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors", and with no passengers for hire, does not need ANY fire extinguishers (but why wouldn't you anyway?). Otherwise: Up to 26 feet: one B-I extinguisher; or NONE, if there is a fixed fire extinguisher in the machinery space (engine compartment); Over 26 but under 40 feet: two B-I extinguishers, or one, if there is an engine extinguisher; Over 40 feet but not over 65 feet: three B-I, or two, if there is an engine extinguisher. Note that two B-I extinguishers may be substituted for a B-II extinguisher. Additional regulations apply to "Motor Vessels" and "barges" over 50 tons. It depends on the size of the boat and the jurisdiction it's in. Check your local boating regulations if you have any questions about this whatsoever.
A dive that requires two tanks of air to complete
At least one USCG-approved Class B-1 fire extinguisher is required on any powerboat, unless it is under the following exception:"motorboats less than 26 feet in length,propelled by outboard motors andnot carrying passengers for hire, need not carry such portable fire extinguishers ifthe construction of such motorboats will not permit the entrapment of explosive or flammable gases or vapors" [bullets added]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).