Fixed CO2 Fire Extinguishing Installation Sign

Fixed CO2 Fire Extinguishing Installation Sign – IMO Fire Control Symbol FS0157

The Fixed CO2 Fire Extinguishing Installation sign is a mandatory IMO fire control symbol used to mark the location of a vessel’s fixed carbon dioxide fire-extinguishing system storage bank. Recognised under IMO Resolution A.654(16) and reproduced to ISO 17631, this pictogram allows crew, surveyors, and shore-based emergency responders to identify the installation instantly, regardless of the language they speak.

The symbol depicts a horizontal cylindrical storage vessel with a light band across its centre, labelled “CO2” above, denoting the fixed carbon dioxide fire-extinguishing installation specifically (as distinct from the equivalent fixed installation symbols used for nitrogen, halon, or foam systems). This design forms part of the internationally standardised library of fire control symbols found on fire control plans, damage control plans, and general arrangement drawings across commercial vessels, offshore installations, and naval ships.

Why the Fixed CO2 Installation Location Matters

A fixed CO2 fire-extinguishing installation stores pressurised carbon dioxide in a dedicated bottle room or storage bank, ready to be released into a protected machinery space, cargo hold, or pump room to smother a fire by displacing oxygen. Because the installation itself, and not just its remote release point, must be clearly identifiable, this sign is fixed directly at or near the storage bank so crew, surveyors, and emergency responders can immediately locate the CO2 supply during an inspection, drill, or genuine emergency.

Because rapid, unambiguous identification of fixed fire-extinguishing installations is so important during a fire emergency, SOLAS Chapter II-2 and the Fire Safety Systems Code require clear signage marking their location so crew unfamiliar with a particular vessel, relief officers, and visiting surveyors can find them without delay. This sign is typically mounted directly on or beside the CO2 room bulkhead or storage bank enclosure, and is also reproduced on the fire control plan posted at the gangway and bridge.

Compliance and Certification

This Fixed CO2 Fire Extinguishing Installation sign is manufactured to comply fully with IMO Resolution A.654(16) and ISO 17631 symbol requirements, ensuring the pictogram, colour scheme, and proportions match the standard expected during port state control inspections, classification society surveys, and SOLAS compliance audits. Non-standard or incorrectly proportioned signage is a common source of survey deficiencies, so every FS0157 sign is checked against the current IMO symbol register before it leaves our warehouse.

Manufactured from durable photoluminescent, self-adhesive vinyl, this sign charges under normal ambient lighting and glows for an extended period in the dark, ensuring the CO2 installation remains identifiable even during a blackout or power failure. This self-luminous performance is especially valuable in machinery spaces and dedicated bottle rooms where visibility can drop sharply during a fire or smoke event.

Installation Recommendations

For best results, mount this sign at eye level directly on or beside the CO2 storage bank enclosure or bottle room door, in a position that stays visible and unobstructed by cabling, fittings, or nearby equipment. Clean the mounting surface thoroughly to remove any dust, oil, or moisture before applying the self-adhesive backing, ensuring a permanent bond that will hold up to the conditions typical of a machinery space or dedicated bottle room.

Vessels undergoing a fire control plan update, newbuild fit-out, or SOLAS compliance retrofit should ensure this sign is included alongside the complete suite of IMO fire control symbols so that the printed fire control plan matches the physical signage installed throughout the ship. Surveyors routinely cross-check the fire control plan against signage actually fitted onboard, making consistency between the two a key focus area during flag state and classification inspections.

Key features of this Fixed CO2 Fire Extinguishing Installation sign include:

• Complies with IMO Resolution A.654(16) and ISO 17631 fire control symbol standards
• Photoluminescent vinyl construction for visibility during power loss or low-light conditions
• Self-adhesive backing for fast, permanent installation on panels and bulkheads
• Waterproof and saltwater resistant for long-term use throughout the vessel
• Matches the standard pictogram used fleet-wide on fire control plans for consistent crew recognition

This fixed CO2 fire extinguishing installation sign is a small but essential part of a compliant fire control plan. Order your Fixed CO2 Fire Extinguishing Installation sign today to keep your vessel’s fire control plan and physical signage fully aligned, supporting crew safety, SOLAS compliance, and a smooth outcome at your next port state control or classification survey.

For more information on the international symbol standards referenced above, see the International Maritime Organization resolution library. Browse our full range of Fire Fighting Signs for more IMO-compliant fire control signage for your vessel.

This fixed co2 fire extinguishing installation sign should be positioned clearly at the entrance to any protected space, alerting crew before entry that the CO2 flooding system may activate. Pair it with our broader range of fire fighting signs to keep every machinery space fully compliant.