| Space
| Fire extinguishing
|
|---|
Minimum
required
rating
| Quantity and location
|
|---|
| Safety Area
1
|
| Wheelhouse or fire control room | 2-A, 20-B:C | 1 of each rating required for vessels over 1,000 GT. Only 1 extinguisher is required if it carries both 2-A and 20-B:C ratings.
|
| Stairway and elevator enclosures | | None required.
|
| Communicating corridors | 2-A | 1 in each main corridor in each main vertical zone. (May be located in stairway enclosures.)
|
| Lifeboat embarkation and lowering stations | | None required.
|
| Radio room | 20-B:C
3 | 2 in the vicinity of the exit.
2
|
| Accommodations
1
|
| Staterooms, toilet spaces, isolated pantries, etc | | None required.
|
| Offices, lockers, and isolated storerooms | | None required.
|
| Public spaces | 2-A | 1 for each 2,500 sq ft or fraction thereof located in vicinity of the exits, except that none are required for spaces under 500 sq ft.
|
| Open decks or enclosed promenades | | None required.
|
| Service Spaces
|
| Galleys | 40-B:C | 1 for each 2,500 sq ft or fraction thereof suitable for hazards involved.
|
| Main pantries | 2-A | 1 for each 2,500 sq ft or fraction thereof located in the vicinity of the exits.
|
| Motion picture booths and film lockers | 10-B:C
3 | 1 outside in the vicinity of the exit.
|
| Paint and lamp rooms | 40-B | 1 outside space in the vicinity of the exit.
|
| Inaccessible baggage, mail, and specie rooms, and storerooms | | None required.
|
| Accessible baggage, mail, and 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.
|
| Refrigerated storerooms | 2-A | 1 for each 2,500 sq ft or fraction thereof located in the vicinity of the exits, outside the spaces.
|
| Carpenter, valet, photographic, printing shops sales rooms, etc. | 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, but not less than 2 or more than 6.
|
| 120-B | 1 required.
5
|
| Electric propulsive motors or generators of 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.
6
|
| Auxiliary spaces, electric emergency motors or generators | 40-B:C | 1 outside the space in the vicinity of the exit.
6
|
| Auxiliary spaces, steam | | None required.
|
| Trunks to machinery spaces | | None required.
|
| Fuel tanks | | None required.
|
| Cargo Spaces
|
| Inaccessible during voyage, including trunks (excluding tanks) | | None required.
|
| Accessible during voyage | 2-A | 1 for each 1,200 sq ft or fraction thereof.
|
| Vehicular spaces (covered by a sprinkler system) | 40-B | 1, plus 1 for each 6,000 sq ft or fraction thereof.
|
| Vehicular spaces (not covered by a sprinkler system) | 40-B | 1, plus 1 for each 1,500 sq ft or fraction thereof.
7
|
| Cargo oil tanks | | None required.
|
| Spare Units
|
| | 2-A | 10 percent of the required number for public spaces rounded up.
|
| | 40-B | 10 percent of the required number for cargo spaces rounded up.
|
| | 40-B:C | 1.
|