Table 1 to § 95.50-10(b)-Portable Fire Extinguisher and Semi-Portable Fire Extinguishing Systems
Space | Minimum required rating | Quantity and location |
Safety Areas1 | ||
Wheelhouse or fire control room | None required. | |
Stairway and elevator enclosures | None required. | |
Communicating corridors. | 2-A | 1 in each main corridor not more than 150 ft apart. (May be located in stairways.) |
Lifeboat embarkation and lowering stations | None. | |
Radio room | 20-B:C2 | 2 required in the vicinity of the exit.2 |
Accommodations1 | ||
Staterooms, toilet spaces, public spaces, offices, lockers, isolated storerooms, pantries, open decks, etc | None required. | |
Service Spaces1 | ||
Galleys | 40-B:C | 1 for each 2,500 sq ft or fraction thereof suitable for hazards involved. |
Paint and lamp rooms | 40-B | 1 outside space in the vicinity of the exit. |
Accessible baggage, mail, specie rooms, and storerooms | 2-A | 1 for each 2,500 sq ft or fraction thereof located in the vicinity of the exits, either inside or outside the spaces. |
Carpenter shop and similar spaces | 2-A | 1 outside the space in the vicinity of the exit. |
Machinery Spaces | ||
Coal-fired boilers: Bunker and boiler space | None required. | |
Oil-fired boilers: Spaces containing oil-fired boilers, either main or auxiliary, or their fuel-oil units | 40-B 160-B | 2 required.3 1 required.4 |
Internal combustion or gas turbine propelling machinery spaces | 40-B | 1 for each 1,000 brake horsepower; not less than 2 but not more than 6.5 |
120-B | 1 required.6 7 | |
Electric propulsive motors or generators of an open type | 40-B:C | 1 for each propulsion motor or generator unit. |
Enclosed ventilating systems for motors and generators of electric propelling machinery | None required. | |
Auxiliary Spaces | ||
Internal combustion or gas turbine | 40-B | 1 outside the space in the vicinity of the exit.7 |
Electric emergency motors or generators | 40-B:C | 1 outside the space in the vicinity of the exit.8 |
Steam | None required. | |
Trunks to machinery spaces | None required. | |
Fuel tanks | None required. | |
Cargo Spaces | ||
Inaccessible during voyage, including trunks and cargo tanks | None required. | |
Accessible during voyage | None required. | |
Spare Units | ||
2-A | 10 percent of the total number required rounded up. | |
40-B:C | 10 percent of the total number required rounded up. | |
20-B:C | 1 |
1 For motorboats, the total number of portable fire extinguishers required for safety areas, accommodation spaces, and service spaces must be one 20-B for motorboats of less than 50 GT and two 20-B ratings for motorboats of 50 GT or more.
2 For vessels on an international voyage, substitute one 20-C in the vicinity of the exit.
3 Vessels of less than 1,000 gross tons require one.
4 Vessels of less than 1,000 gross tons may substitute one 120-B.
5 Only one is required for motorboats.
6 If an oil-burning donkey boiler fitted in space, the 160-B previously required for the protection of the boiler may be substituted. Not required where a fixed carbon dioxide system is installed.
7 Not required on vessels of less than 300 gross tons if the fuel has a flashpoint higher than 110 °F.
8 Not required on vessels of less than 300 gross tons.
46 C.F.R. §§95.50-10