46 CFR § 132.220 - Installation.
(a) Each portable fire extinguisher approved under subpart 162.028 of this chapter and each semi-portable fire extinguisher approved under subpart 162.039 of this chapter must be installed in compliance with Table 132.220 of this section. The placement of each extinguisher must satisfy the cognizant OCMI, who may also deem added extinguishers necessary for the proper protection of the vessel.
Table 132.220—Required Portable and Semi-Portable Fire Extinguishers
| Space | Minimum required rating | Number and placement |
|---|---|---|
| Safety areas: Communicating passageways | 2-A | 1 in each main passageway, not more than 45.7 m (150 ft) apart (permissible in stairways). |
| Pilothouse | 20-B:C | 2 in the vicinity of the exit. |
| Service spaces: Galleys | 40-B:C | 1 for each 230 sq m (2,500 sq ft) or fraction thereof, suitable for hazards involved. |
| Paint lockers | 40-B | 1 outside space, in the vicinity of the exit. |
| Accessible baggage and storerooms | 2-A | 1 for each 230 sq m (2,500 sq ft) or fraction thereof, located in the vicinity of the exits, either inside or outside spaces. |
| Workshops and similar spaces | 2-A | 1 outside space in the vicinity of the exit. |
| Machinery spaces: Internal-combustion propulsion-machinery | 40-B:C | 1 for each 1,000 brake horsepower, but not fewer than 2 and more than 6. |
| 120-B | 1 required. 1 2 | |
| Electric propulsion motors or generators of open type | 40-B:C | 1 for each propulsion motor or generator unit. |
| Auxiliary spaces: Internal combustion | 40-B | 1 outside space in the vicinity of the exit. 2 |
| Electric motors and emergency generators | 40-B:C | 1 outside space in the vicinity of the exit. 2 |
| Spares | 2-A | 10 percent of the required number rounded up. |
| 40-B:C | 10 percent of the required number rounded up. |
1 Not required where a fixed gaseous fire extinguishing system is installed.
2 Not required on vessels of less than 300 GT.
(b) Table 132.220 of this section indicates the minimum required number and type of extinguishers for each space listed. Extinguishers with larger numerical ratings or multiple letter designations may be used if the extinguishers meet the requirements of the table.
(c) Each semi-portable fire extinguisher must be mounted or otherwise placed in the open so as to be readily visible.
(d) Except as provided by paragraph (d) of this section, each portable fire extinguisher must be mounted or otherwise placed in the open or behind glass so as to be readily visible.
(e) A portable fire extinguisher may be mounted or otherwise placed in an enclosure together with the firehose, if the enclosure is marked in compliance with § 131.830 of this subchapter.
(f) Each portable fire extinguisher and its station must be numbered to comply with § 131.835 of this subchapter.
(g) No portable or semi-portable fire extinguisher with a nameplate indicating that it needs protection from freezing may be mounted or otherwise placed where freezing temperatures are foreseeable.