Does the 2026 SOLAS Rule Reach Old Ships?
Yes. The SOLAS II-2/20 detection and video-monitoring amendments, in force since 1 Jan 2026, catch existing ships at the first survey on/after 1 Jan 2028.
Yes. The SOLAS Chapter II-2/20 and FSS Code amendments adopted as Resolutions MSC.550(108) and MSC.555(108) entered into force on 1 January 2026, and they reach past newbuilds. The fixed fire detection and video-monitoring requirements for vehicle, special category and ro-ro spaces also catch existing cargo ships and ro-ro passenger ships — at the first survey on or after 1 January 2028.
What MSC.550(108) actually added
The amendment is broader than the weather-deck suppression rule it is usually reduced to. Four arrangements landed together for vehicle, special category and ro-ro spaces.
- Fixed fire detection upgraded: heat detectors added to existing smoke detectors — or combined smoke-and-heat detectors — across special category, open and closed ro-ro, and vehicle spaces (FSS Code Chapter 9).
- An effective video monitoring and recording system for continuous monitoring of those spaces, with cameras positioned high enough to see over cargo and vehicles after loading.
- A fixed water-based fire-extinguishing system based on monitors protecting weather-deck areas intended for vehicles (FSS Code Chapter 7, new Section 2.5).
- An efficient fire patrol system in special category spaces.
Where existing tonnage gets caught
The retrofit reach is the part the trade is underpricing. The weather-deck water-monitor system is tied to newbuilds keel-laid on or after 1 January 2026. The detection and video-monitoring requirements are not newbuild-only — existing cargo ships and ro-ro passenger ships must comply not later than the first survey on or after 1 January 2028. For a vehicle carrier on an annual/intermediate survey cadence, that is one inspection cycle away, with plan approval expected ahead of the survey.
Video monitoring is surveillance, not detection
The new monitoring requirement is a recording CCTV system, not an automated detection layer. It timestamps footage for casualty investigation and lets a watch-keeper identify a fire quickly once it is visible — but a camera does not itself raise an alarm ahead of flame. It depends on a human watching the feed.
Continuous automated detection is a different capability. Vapor-phase sensing aims to flag electrolyte off-gassing ahead of the thermal signature, and multi-modal sensor fusion (IR thermal plus electrochemical sensing) reduces the false-alarm penalty that makes crews slow to trust a single channel. The 2026 amendment mandates eyes on the deck and heat detectors in the overhead; it does not yet mandate per-vehicle early detection on enclosed decks, where the most cited casualties have started.
Sources
- IMO — "Raft of shipping rules in force from 1 January 2026" press briefing (Resolutions MSC.550(108) and MSC.555(108)).
- IMO Resolution MSC.550(108) — Amendments to SOLAS Chapters II-2 and V.
- IMO Resolution MSC.555(108) — Amendments to the FSS Code (Chapters 7 and 9).
- Lloyd's Register — Class News 07/2026, "SOLAS amendments: Fire Safety Requirements for ro-ro Passenger Ships."
- DNV — IMO Maritime Safety Committee (MSC 110) regulatory summary (2025).
Questions, answered
Does the January 2026 SOLAS fire amendment apply to existing ships?+
Yes, in part. The weather-deck water-monitor suppression requirement is tied to newbuilds keel-laid on or after 1 January 2026, but the fixed fire detection upgrade and the video-monitoring requirement reach existing cargo ships and ro-ro passenger ships. Per Lloyd's Register, those must comply not later than the first survey on or after 1 January 2028.
What did Resolutions MSC.550(108) and MSC.555(108) add?+
MSC.550(108) amends SOLAS Regulation II-2/20 and MSC.555(108) amends the FSS Code (Chapters 7 and 9). Together they require upgraded fixed fire detection with heat detectors in vehicle, special category and ro-ro spaces, an effective video monitoring and recording system, a weather-deck water-based monitor system, and an efficient fire patrol in special category spaces. All entered into force on 1 January 2026.
Is a video monitoring system the same as fire detection?+
No. The required video monitoring and recording system is CCTV — it records the space and helps a watch-keeper identify a fire once visible, and it timestamps footage for casualty investigation. It does not raise an alarm ahead of flame. Automated detection — vapor-phase and multi-modal thermal sensing — is a separate capability the 2026 amendment does not yet mandate for enclosed decks.
Which spaces and detector types are affected?+
Special category spaces, open and closed ro-ro spaces, and vehicle spaces. The FSS Code Chapter 9 changes call for heat detectors additional to existing smoke detectors, or combined smoke-and-heat detectors. Cameras for the video monitoring system must be installed high enough to see over cargo and vehicles after loading, covering the whole space.
Continue the thread
What SOLAS II-2/20 Requires From 2026
The amendment quietly took effect on 1 January 2026. The text is short. The operational implications for vehicle carriers and ro-ro pax are not.
What Port State Control Checks on Decks
PSC inspectors arriving on vehicle carriers in 2026 have a different checklist than they did in 2022. Detention rates on RoRo tonnage are quietly climbing.