What Does SOLAS 2026 Video Monitoring Require?

A camera system on every vehicle deck of a passenger ship, built to tell the crew which drencher section to open — and explicitly not a detection system. New paragraph 20.4.4 of SOLAS II-2, inserted by Resolution MSC.550(108), requires passenger ships constructed on or after 1 January 2026 to fit effective video monitoring of vehicle, special category and ro-ro spaces with immediate playback, seven days of recording, and a displayed correspondence between each camera and its fixed water-based section; existing passenger ships follow at the first survey on or after 1 January 2028 with 24 hours of retention. The text says continuous monitoring of the image by the crew is not required. It does not name cargo ships.

What the paragraph actually says

Six things, each of which is a specification item. Paragraph 20.4.4.1: for passenger ships, an effective video monitoring system shall be arranged in vehicle, special category and ro-ro spaces for continuous monitoring of these spaces; it shall have immediate playback capability to allow quick identification of fire location, as far as practicable; and cameras shall be installed to cover the whole space, high enough to see over cargo and vehicles after loading. Paragraph 20.4.4.2: the recordings shall be available for replay at a continuously manned control station or at the safety centre for at least seven days on ro-ro passenger ships constructed on or after 1 January 2026 and 24 hours on existing ro-ro passenger ships, including those built before 1 July 2012; the correspondence between any one camera and the section of the fixed water-based fire-extinguishing system protecting the space it covers shall be clearly displayed close to the video monitor; and continuous monitoring of the video image by the crew is not required.

The application is in the chapeau and in 20.2.1.3: passenger ships with vehicle, special category or ro-ro spaces constructed before 1 January 2026 must comply with 20.4.4 not later than the first survey on or after 1 January 2028. Paragraph 20.4.1.3, in the detection section, closes the loop from the other side — the section numbering of the alarm system shall coincide with that of the fixed water-based system and the video monitoring system. The three subsystems are meant to share one map.

What the regulation wants the camera for

To turn a zone alarm into a valve number. Every clause of 20.4.4 points at the same use: playback "to allow for quick identification of fire location", cameras that see over the loaded stow, a displayed mapping from camera to drencher section, and a shared section numbering with the detection panel. The scenario the paragraph is written for is the one that has recurred on ro-pax decks — an alarm that names a section, a space that cannot be entered, and a crew that has to decide which section of a fixed water-based system to release before the fire crosses a boundary. The camera exists to confirm the location and the extent, so that the release goes to the right section and no one is sent into a space about to be flooded. IUMI's 2025 guidance says the same thing from the underwriter's side: detection and confirmation should be treated as one step, and the time between them reduced to the shortest possible period.

That is why the crew-watching clause is there. A system that required a watchkeeper to stare at a bank of dark deck feeds for a crossing would be a fatigue hazard and a fiction; a system that is consulted the moment a detector trips, with the camera for that section already on screen, is a verification tool. The regulation mandates the second and disclaims the first. Reading 20.4.4 as "we now have detection" misreads what was written — the detection is 20.4.1, and the video is the thing you look at after it fires.

'Effective' and 'high enough to see over vehicles' are the engineering problem

The regulation hands you three physical constraints and no camera count. Line of sight first: the text requires cameras high enough to see over cargo and vehicles after loading, which is a statement about the roofline — a fire starting under a chassis, in an engine bay or between two closely lashed cars is invisible from the deckhead until it clears the roofs, the same optical limit that makes flame detectors a late layer on a car deck. Light second: these are dark spaces at sea, so an effective system works on its own infrared illumination rather than on deck lighting that may be off. Smoke third: the moment the event becomes visible the medium you are watching through is the thing obscuring it, and the NTSB's description of the Honor garage deck — thick black smoke reducing visibility to nothing within minutes — is the condition a deck camera will be asked to see through.

The practical consequences follow from the text. Coverage is planned against the loaded stow plan, not the general arrangement. Mounting height is dictated by the tallest cargo the deck is certified for, not the average car. Camera-to-section mapping is a document as much as a display — it has to survive a re-zoning of the drencher and be updated with it. And because the regulation puts the replay at the continuously manned control station or the safety centre, the network from deck to bridge has to be as available as the detection loop it accompanies.

The recording half is the underrated half

Seven days on a new ship, 24 hours on an existing one — and the difference tells you what the record is for. On a newbuild the retention is long enough to survive a voyage and reach an investigator; on an existing ship it is long enough to reach the end of the emergency. Either way the recording turns a contested timeline into evidence: when the first alarm came, what the deck looked like, whether the boundary was closed, when anyone entered, when the section was released. That is the material casualty investigators reconstruct afterwards — the NTSB used Honor's VDR and ECDIS to establish that the ship had cleared the traffic scheme before the crew committed to firefighting — and the material an underwriter asks for at claim. On a deck the crew often cannot enter, the recording may be the only witness to how the fire developed, which makes retention, timestamping and export part of the specification rather than an afterthought.

What to specify

• Coverage designed to the loaded stow plan and the tallest certified cargo — the regulation's own condition is "after loading".
• Infrared or low-light capability that does not depend on deck lighting being on at sea.
• A camera-to-drencher-section map that is displayed at the monitor, kept as a controlled document, and revised whenever the drencher zoning changes; section numbering identical across detection panel, drencher and video (20.4.1.3).
• Replay at the continuously manned control station or safety centre, retention of at least seven days on a newbuild and 24 hours on an existing ship, timestamped and exportable.
• Accept the smoke and roofline limits explicitly: the camera's value peaks in the minutes after a detector trips and before obscuration, so pair it with detection that trips early and reports a section — the video cannot carry the early window.
• On a car carrier, where none of this is required, write the same items into the specification by reference to 20.4.4 and 20.4.1.3 if the ship is to have the capability at all — the paragraph is a usable template even where it does not apply.

What it means for owners and class

For a ro-pax owner the video system is a real design and capital item arriving alongside the smoke-and-heat detection upgrade, and it is easy to under-specify by treating it as ordinary CCTV — the mapping to drencher sections and the replay-at-control-station requirement are what the surveyor will look for. Existing ships have until the first survey on or after 1 January 2028, with the lighter 24-hour retention. For a PCTC owner there is no statutory requirement, and none is due before the IMO's vehicle-carrier work concludes: SSE 12 in March 2026 gave priority to interim guidelines on video monitoring and detection systems for that purpose, with a correspondence group reporting to SSE 13 in March 2027 and SOLAS text in force no earlier than 2032. The ro-pax paragraph is the draft those guidelines will be cut from; a car carrier fitting cameras now would do well to fit them to it.

Sources

• 1. IMO Resolution MSC.550(108), adopted 23 May 2024, in force 1 January 2026 — SOLAS II-2/20 as amended: 20.2.1.3 (passenger ships constructed before 1 January 2026, including before 1 July 2012, to comply with 20.4.4 at the first survey on or after 1 January 2028); 20.4.1.3 (section numbering of the alarm system to coincide with the fixed water-based and video monitoring systems); 20.4.4 chapeau, 20.4.4.1 ("For passenger ships, an effective video monitoring system … continuous monitoring … immediate playback capability to allow for quick identification of fire location, as far as practicable … cover the whole space, high enough to see over cargo and vehicles after loading") and 20.4.4.2 (replay at a continuously manned control station or the safety centre; seven days new / 24 hours existing ro-ro passenger ships; camera-to-section correspondence displayed close to the monitor; "Continuous monitoring of the video image by the crew is not required"). Read from the resolution text.
• 2. ABS Regulatory News No. 15/2025 (December 2025) — "Fire Safety Requirements for Ro-Ro, Passenger and Cargo Ships": video monitoring listed under passenger ships constructed on or after 1 January 2026 and under existing passenger ships (first survey on or after 1 January 2028, 24-hour replay); cargo-ship rows list fixed detection only. Korean Register — "Amendments taking effect in 2026": video monitoring with immediate playback and at least seven-day storage (new) / 24-hour storage (existing) under passenger ships.
• 3. IUMI — "Risk mitigation for the safe ocean and short-sea carriage of electric vehicles", September 2025: detection and confirmation/verification to be treated as one step with the time between them reduced to the shortest possible period; video monitoring/CCTV listed among supported early-detection technologies alongside gas detection, thermal imaging and AI systems; the SOLAS/FSS amendments "will mainly apply to new passenger ships" and include an effective video monitoring system.
• 4. NTSB Marine Accident Brief MAB-18/07, "Fire on board Vehicle Carrier Honor": thick black smoke reducing visibility to nothing on the garage deck; VDR and ECDIS used to reconstruct the ship's manoeuvring during the fire. Via the linked case-study post.
• 5. DNV — "IMO Sub-Committee on Ship Systems and Equipment (SSE 12)", March 2026: interim guidelines on video monitoring and detection systems, and on fire safety measures for PCTCs, to precede SOLAS amendments; correspondence group to SSE 13 (March 2027); entry into force 1 January 2032 at the earliest.