Regulations last checked for updates: Nov 22, 2024

Title 46 - Shipping last revised: Nov 04, 2024
§ 34.50-1 - Application—TB/ALL.

(a) The provisions of this subpart, with the exception of §§ 34.50-80 and 34.50-90, must apply to all vessels contracted for on or after August 22, 2016.

(b) Vessels contracted for prior to August 22, 2016 but on or after January 1, 1962, must meet the requirements of § 34.50-80.

(c) All vessels contracted for prior to January 1, 1962, must meet the requirements of § 34.50-90.

[USCG-2012-0196, 81 FR 48249, July 22, 2016]
§ 34.50-10 - Location, number, and installation of fire extinguishers—TB/ALL.

(a) Approved portable and semi-portable extinguishers must be installed in accordance with table 1 to § 34.50-10(a). The location of the equipment must be, in the opinion of the Officer in Charge, Marine Inspection, convenient in case of emergency. Where special circumstances exist, not covered by table 1 to § 34.50-10(a), the Officer in Charge, Marine Inspection, may require additional equipment as deemed necessary for the proper protection of the vessel.

(b) For additional portable extinguishers as a substitute for sand, see § 34.55-10.

(c) Semi-portable extinguishers must be located in the open so as to be readily seen.

(d) If portable extinguishers are not located in the open or behind glass so that they may be readily seen they may be placed in enclosures together with the firehose, provided such enclosures are marked as required by § 35.40-25 of this subchapter.

(e) Portable extinguishers and their stations must be numbered in accordance with § 35.40-25 of this subchapter.

(f) Portable or semi-portable extinguishers which are required by their nameplates to be protected from freezing must not be located where freezing temperatures may be expected.

(g) Semi-portable extinguishers must be fitted with a suitable hose and nozzle, or other practicable means, so that all portions of the space concerned can be protected.

(h) Table 1 to § 34.50-10(a) indicates the minimum required number and type 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.

Table 1 to § 34.50-10(a)—Portable and Semi-Portable Extinguishers

Tank ships Area Tank barges
Quantity and location Minimum
required
rating
Minimum
required
rating
Quantity and location
Safety Areas
1 required20-B:CWheelhouse and chartroom areasNone required.
1 required in the vicinity of the exit20-B:C 1Radio roomNone required.
Accommodation Areas
1 required in each main passageway on each deck, conveniently located, and so that no room is more than 75 ft from an extinguisher2-AStaterooms, toilet spaces, public spaces, offices, etc., and associated lockers, storerooms, and pantries2-A1 required in the vicinity of the exit.
Service Areas
1 required for each 2,500 sq ft or fraction thereof40-B:CGalleys40-B:C1 required, suitable for the hazard involved.
1 required for each 2,500 sq ft or fraction thereof40-BStores areas, including paint and lamp roomsNone required.
Machinery Area 2
2 required 340-BSpaces containing oil fired boilers, either main or auxiliary, or any fuel oil units subject to the discharge pressure of the fuel oil service pump40-B1 required. 12
and
1 required160-B 4
1 required for each 1,000 brake horsepower; not less than 2, not more than 6 540-BSpaces containing internal combustion or gas turbine propulsion machineryNone required.
and
1 required 6 7120-B
1 required in the vicinity of the exit 740-BAuxiliary spaces containing internal combustion or gas turbine units40-B1 required in the vicinity of the exit. 7 9 12
1 required in the vicinity of the exit 840-B:CAuxiliary spaces containing emergency generatorsNone required.
Cargo Areas
1 required in the lower pumproom40-BPumprooms40-B1 required in the vicinity of the exit. 9 12
None requiredCargo tank area40-B2 required. 10 12 13
160-B1 required. 9 11
Spare Units
10 percent of required units rounded up2-A2-A10 percent of required units rounded up.
10 percent of required units rounded up40-B:C40-B:C10 percent of required units rounded up.

1 Vessels not on an international voyage may substitute two 5-B:C rated extinguishers.

2 A 40-B:C must be immediately available to the service generator and main switchboard areas, and further, a 40-B:C must be conveniently located not more than 50 feet (15.25 meters) walking distance from any point in all main machinery operating spaces. These extinguishers need not be in addition to other required extinguishers.

3 Vessels of fewer than 1,000 GT require 1.

4 Vessels of fewer than 1,000 GT may substitute 1 120-B:C.

5 Only 1 required for vessels under 65 ft in length.

6 If an oil-burning donkey boiler is fitted in the space, the 160-B:C 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 fewer than 300 GT if the fuel has a flashpoint higher than 110 °F.

8 Not required on vessels of fewer than 300 GT.

9 Not required if fixed system installed.

10 If no cargo pump on barge, only one 40-B:C required.

11 Manned barges of 100 GT and over only.

12 Not required on unmanned barges except during the transfer of cargo, or operation of barge machinery or boilers when the barge is not underway.

13 An extinguisher brought on to unmanned barges during the transfer of cargo, or operation of barge machinery or boilers does not have to be Coast Guard approved, provided it is approved by a nationally recognized testing laboratory (NRTL) in accordance with 29 CFR 1910.7.

[USCG-2012-0196, 81 FR 48249, July 22, 2016, as amended by USCG-2020-0519, 89 FR 76695, Sept. 18, 2024]
§ 34.50-20 - Semiportable fire extinguishers—TB/ALL

(a) The frame or support of each size III, IV, and V fire extinguisher required by table 34.50-10(a) must be welded or otherwise permanently attached to a bulkhead or deck.

(b) If a size III, IV, or V fire extinguisher has wheels and is not required by table 34.50-10(a), it must be securely stowed when not in use to prevent it from rolling out of control under heavy sea conditions.

[CGD 77-039, 44 FR 34132, June 14, 1979]
§ 34.50-80 - Location and number of fire extinguishers required for vessels constructed prior to August 22, 2016—TB/ALL.

Vessels contracted for prior to August 22, 2016, must meet the following requirements:

(a) Previously installed extinguishers with extinguishing capacities smaller than as required in table 34.50-10(a) need not be replaced and may be continued in service so long as they are maintained in good condition to the satisfaction of the Officer in Charge, Marine Inspection.

(b) All new equipment and installations must meet the applicable requirements in this subpart for new vessels.

[USCG-2012-0196, 81 FR 48250, July 22, 2016]
§ 34.50-90 - Vessels contracted for prior to January 1, 1962—TB/ALL.

(a) Vessels contracted for prior to January 1, 1962, shall meet the following requirements:

(1) The provisions of §§ 34.50-5 through 34.50-15 shall be met with the exception that existing installations may be maintained if in the opinion of the Officer in Charge, Marine Inspection, they are in general agreement with the degree of safety prescribed by table 34.50-10(a). In such cases, minor modifications may be made to the same standard as the original installation: Provided, That in no case will a greater departure from the standards of table 34.50-10(a) be permitted than presently exists.

(2) [Reserved]

(b) [Reserved]

authority: 46 U.S.C. 3306,3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4
source: CGFR 65-50, 30 FR 16694, Dec. 30, 1965, unless otherwise noted.
cite as: 46 CFR 34.50-90