Extinguishers are classified by a letter and number symbol. The number indicates the relative size of the extinguisher, and the letter indicates the type of fire it will extinguish.
- Type A fires are of combustible solids like wood.
- Type B fires are of flammable liquids like gasoline or oil.
- Type C fires are electrical fires.
All vessels, including PWCs, are required to have a Type B, U.S. Coast Guard–approved fire extinguisher(s) on board if one or more of the following conditions exist:
- Closed compartments
- Permanently installed fuel tanks
- Double-bottoms that are not sealed to the hull or that are not completely filled with flotation material
- Closed living spaces
Fire Extinguisher Requirements Chart
Use this chart to determine the type and quantity of fire extinguishers required for your vessel.
|Length of Vessel||Without Fixed System||With Fixed System *|
|* refers to a permanently installed fire extinguisher system|
|Less than 26 feet||one B-I||None|
|26 feet to less than 40 feet||two B-I or one B-II||one B-I|
|40 feet to less than 65 feet||three B-I or one B-II and one B-I||two B-I or one B-II|
Extinguishers should be placed in an accessible area—not near the engine or in a compartment, but where they can be reached immediately. Be sure you know how to operate them.