There are currently three types of fire extinguishers approved and available on the market for marine use: Carbon Dioxide (CO2), Dry Chemical, and Halon. Foam extinguishers manufactured after 1965 have not been approved for marine use. Foam extinguishers that were made prior to 1965 and were Coast Guard approved still meet the legal requirements as long as they are in serviceable condition.

Carbon Dioxide	Halon	Dry Chemical

All carbon tetrachloride extinguishers and others of the TOXIC vaporizing-liquid type, such as chlorobromomethane, are not approved and are not accepted as required fire extinguishers on any motorboats.

In choosing a fire extinguisher, you should become familiar with the characteristics of each type and determine which would best suit your particular boating needs. Table B will provide you with information about the different types of extinguishers.

No matter which extinguisher you choose, its success in putting out a fire will depend on whether the extinguisher is:

----- In good working order. In addition to regular maintenance, check frequently for leakage, tampering, corrosion, or damage. Recharge or replace after any use.
----- Properly located. Put an extinguisher in a place where it can be found quickly in an emergency. Also, place it a safe distance from potential sources of fire (engines, stoves, etc.).
----- The proper type for the fire. (See Table B).
----- Use before the fire becomes too big. Portable extinguishers are designed to put out small fires, not large ones. The discharge time of many extinguishers is 8 to 15 seconds. Be aware that deep-seated fires that appear to be out may start up again (reflash), if there is sufficient heat below the surface. The possibility of reflash and the short discharge time of an extinguisher is an important reason for carrying extra extinguishers on board.

TABLE A
FIRE EXTINGUISHER REQUIREMENTS

All extinguishers must be readily accessible (preferably not stowed next to common fire sources),
and they must be kept in a serviceable condition.

U.S. Coast Guard Group Stations / Emergency Rescue Procedures/Personal Flotation Devices/First Aid
Fire Extinguishers/Running Lights / Aids To Navigation / Inland Rules of the Road
VHF-FM Frequencies (Sponsored By Standard Communications) / VHF Radio Information
Preparation and Storm Advisories / Recommended Additional Equipment / Trailering Your Boat
Common Useful Knots / Marine Law Enforcement / Wind Determinants