--- kind: "section" citation: "46 C.F.R. § 118.400" title: "46" number: "118.400" heading: "Where required." url: "https://uscodex.org/cfr/46/118.400" --- # §118.400. Where required. - (a) The following spaces must be equipped with a fixed gas fire extinguishing system, in compliance with [§ 118.410](/cfr/46/118.410.md) of this part, or other fixed fire extinguishing system specifically approved by the Commandant, except as otherwise allowed by [paragraph (b)](#b) of this section: - (1) A space containing propulsion machinery; - (2) A space containing an internal combustion engine of more than 50 hp; - (3) A space containing an oil fired boiler; - (4) A space containing combustible cargo or ship's stores inaccessible during the voyage (a carbon dioxide system must be installed in such a space, and Halon systems are not allowed); - (5) A paint locker; and - (6) A storeroom containing flammable liquids (including liquors of 80 proof or higher where liquor is packaged in individual containers of 9.5 liters (2.5 gallons) capacity or greater). - (b) **Alternative system types and exceptions to the requirements of paragraph (a) of this section are—** - (1) A fixed gas fire extinguishing system, which is capable of automatic discharge upon heat detection, may only be installed in a normally unoccupied space with a gross volume of not more than 170 cubic meters (6,000 cubic feet); - (2) A pre-engineered fixed gas extinguishing system must be in compliance with [§ 118.420](/cfr/46/118.420.md) of this part and may only be installed in a normally unoccupied machinery space, a paint locker, or a storeroom containing flammable liquids (including liquors of 80 proof or higher where liquor is packaged in individual containers of 9.5 liters (2.5 gallons) capacity or greater), with a gross volume of not more than 57 cubic meters (2,000 cubic feet); - (3) A 40-B portable fire extinguisher installed outside the space may be substituted for a fixed gas fire extinguishing system in a storeroom containing flammable liquids (including liquors of 80 proof or higher where liquor is packaged in individual containers of 9.5 liters (2.5 gallons) capacity or greater) or a paint locker, with a volume of not more that 5.7 cubic meters (200 cubic feet); - (4) A space that is so open to the atmosphere that a fixed gas fire extinguishing system would be ineffective, as determined by the cognizant OCMI, is not required to have a fixed gas fire extinguishing system; and - (5) Where the amount of carbon dioxide gas required in a fixed fire extinguishing system can be supplied by one portable extinguisher or a semi-portable extinguisher, such an extinguisher may be used subject to the following: - (i) Cylinders must be installed in a fixed position outside the space protected; - (ii) The applicator must be installed in a fixed position so as to discharge into the space protected; and - (iii) Controls must be installed in an accessible location outside the space protected. - (c) The following spaces must be equipped with a fire detection and alarm system of an approved type that is installed in accordance with [part 76](/cfr/46/part76.md) in subchapter H of this chapter, except when a fixed gas fire extinguishing system that is capable of automatic discharge upon heat detection is installed or when the space is manned: - (1) A space containing propulsion machinery; - (2) A space containing an internal combustion engine of more than 37.3 kW (50 hp); and - (3) **A space containing an oil fired boiler.** - (d) Vessels described by [46 CFR 114.110(e)](/cfr/46/114.110.md?p=e) must have an interconnected fire detection system in compliance with [46 CFR 181.450](/cfr/46/181.450.md) installed in all enclosed areas where passengers and crew have routine access, including accommodation spaces and machinery spaces. - (e) All griddles, broilers, and deep fat fryers must be fitted with a grease extraction hood that complies with [§ 118.425](/cfr/46/118.425.md). - (f) Except for continuously manned operating stations as allowed by [paragraph (g)](#g) of this section, each accommodation space, control space, and service space must be fitted with the following systems: - (1) A smoke actuated fire detection system of a type approved by the Commandant that is installed in accordance with [46 CFR part 76](/cfr/46/part76.md); and - (2) **A manual alarm system that meets the requirements in 46 CFR part 76.** - (g) On vessels with no overnight accommodation; public spaces that may be assumed to be occupied by a large number of persons when passengers are on board need only be served by a manual alarm system that meets the requirements in [part 76](/cfr/46/part76.md) in subchapter H of this chapter. The alarm boxes must be located in the vicinity of each required exit, and easily seen in case of need. - (h) An enclosed vehicle space must be fitted with an automatic sprinkler system that meets the requirements of [46 CFR part 76](/cfr/46/part76.md); and - (1) A fire detection system of a type approved by the Commandant that is installed in accordance with [46 CFR part 76](/cfr/46/part76.md); or - (2) A smoke detection system of a type approved by the Commandant that is installed in accordance with [46 CFR part 76](/cfr/46/part76.md). - (i) A partially enclosed vehicle space must be fitted with a manual sprinkler system that meets the requirements of [part 76](/cfr/46/part76.md) in subchapter H of this chapter. ## Notes ### Amendments [CGD 85-080, 61 FR 917, Jan. 10, 1996, as amended at 62 FR 51351, Sept. 30, 1997; USCG-1999-6216, 64 FR 53227, Oct. 1, 1999; USCG-2012-0196; 81 FR 48270, July 22, 2016]; USCG-2021-0306, 86 FR 73171, Dec. 27, 2021; USCG-2024-1103, 90 FR 52881, Nov. 24, 2025] ### Authority Authority: 46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4. ### Source Source: CGD 85-080, 61 FR 917, Jan. 10, 1996, unless otherwise noted. ### Amendments [CGD 85-080, 61 FR 917, Jan. 10, 1996, as amended at 62 FR 51351, Sept. 30, 1997; USCG-1999-6216, 64 FR 53227, Oct. 1, 1999; USCG-2012-0196; 81 FR 48270, July 22, 2016]; USCG-2021-0306, 86 FR 73171, Dec. 27, 2021; USCG-2024-1103, 90 FR 52881, Nov. 24, 2025]