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Regulatory Updates
Regulatory updates and operational context: entries distinguish requirements, proposals, guidance and industry information. Summaries link to reviewed topics for scope, sources and conditions.
Derived view aligned on 16 September 2026 with reviewed topics and sources listed in the report. The editorial check date is not a commencement date. Context entries do not assert new rules or statistics; operational decisions require checking the primary source, scope and reservations in the topic.
2024-2026 update timeline
| Date | Reference and status | What changes | Source and topic |
|---|---|---|---|
| 2024-07-01 / 2029-07-01 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | MARPOL Annex I -- Regulation 43A
| Regulation 43A: Arctic prohibition on HFO use and carriage for use as fuel, with exceptions and transitional provisions. The 2029 date concerns deferred branches and the end of permitted waivers; this is not a ban on carriage of HFO as cargo. | Primary source ↗ Learn more → |
| 1 May 2024 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | MARPOL Annex V
| Garbage Record Book mandatory threshold lowered from 400 GT to 100 GT. | Primary source ↗ Learn more → |
| 1 January 2025 · Editorial check: 2026-09-16 · Topic: 2026-10-16 | MARPOL Annex I & V -- Res. MEPC.381(80) and Res. MEPC.382(80)
| Two distinct resolutions, with the same date and a different geographical scope: MEPC.381(80) sets 1 January 2025 as the date on which the discharge requirements of Annex I take effect for the Red Sea and the Gulf of Aden; MEPC.382(80) does the same for regulation 6 of Annex V, but for the Red Sea only — the Gulf of Aden is not a special area for garbage. Neither amends the Annexes: the areas were already designated, and the resolutions establish the date on which they take effect (reg. 38.8.1 of Annex I and reg. 8.2 of Annex V). | Primary source ↗ Learn more → |
| 1 February 2025 · Editorial check: 2026-09-16 · Topic: 2026-10-17 | BWM Convention -- Res. MEPC.369(80)
| New Ballast Water Record Book format, with standardised A-H operational codes. | Primary source ↗ Learn more → |
| 1 May 2025 · Editorial check: 2026-09-16 · Topic: 2026-10-16 | MARPOL Annex VI -- Res. MEPC.361(79)
| The entire Mediterranean Sea becomes a SECA (Sulphur Emission Control Area): 0.10% sulphur m/m limit unless an equivalent scrubber is used. | Primary source ↗ Learn more → |
| 2025-08-01 / 2026-01-01 · Editorial check: 2026-09-16 · Topic: 2026-10-16 | MARPOL Annex VI -- Res. MEPC.385(81)
| MEPC.385(81) amends Appendix IX for DCS data collection; the granularity applicable from 2026 is managed through SEEMP Part II. Do not attribute new BDN granularity to this resolution. | Primary source ↗ Learn more → |
| 1 October 2025 · Editorial check: 2026-10-17 · Topic: 2026-10-17 | BWM Convention
| Electronic Ballast Water Record Book logs now require ship-specific approval from the flag Administration. | Primary source ↗ Learn more → |
| 2025-12-31 / 2026-01-01 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | MARPOL Annex VI -- SEEMP: DCS Part II and comparison with Part III
| Distinguish SEEMP Part II/DCS from Part III/CII and their respective scopes. Circ.913 addresses the DCS method: revision and verification before collection, from 1 January 2026 for existing ships unless applied early in 2025; for ships delivered on or after 1 August 2025, from delivery. That timetable does not set a new Part III update deadline. | Primary source ↗ DCS timetable — Circ.913 ↗ Learn more → |
| 1 March 2026 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | MARPOL Annex VI -- Res. MEPC.392(82)
| New ECAs in the Canadian Arctic and Norwegian Sea from 1 March 2026; SOx/PM from 1 March 2027. For ship construction, Canadian Arctic: keel/equivalent stage from 1 January 2025. Norwegian Sea: contract from 1 March 2026; or, without a contract, keel/equivalent stage from 1 September 2026; or delivery from 1 March 2030 irrespective of the contract. Also check the individual-engine branch under regulation 13.2. | Primary source ↗ Learn more → |
| 2026-09-01 / 2027-03-01 / 2027-09-01 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | NOx Technical Code -- multiple operational profiles, substantial modification, and the ammonia workstream
| MEPC.398(83) entered into force on 1 September 2026. MEPC.397(83) enters into force on 1 March 2027, with EIAPP-based application in 2028/2030; MEPC.408(84) refers to those conditions for the IAPP Supplement. The official MEPC 84 summary consulted on 16 October 2026 separately reports approval of the NOx draft for non-carbon fuels for subsequent adoption, without presenting it as already adopted or in force. | Primary source ↗ MEPC.398(83) ↗ MEPC.408(84), adopted text ↗ Non-carbon draft — MEPC 84 summary ↗ Learn more → |
| Annual CII calendar for 2025 data · Editorial check: 2026-09-16 · Topic: 2026-09-03 | MARPOL Annex VI -- CII
| The CII requirement is already in force. Data collection, submission, verification and the Statement of Compliance follow distinct deadlines stated in the source topic; a future annual deadline does not make the requirement non-binding. | Institutional context ↗ Learn more → |
| MEPC 83 (draft approved) → October 2025 (extraordinary session adjourned by 12 months) → resumed extraordinary session, 4 December 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMO Net-Zero Framework
| Framework approved at MEPC 83 but not adopted. MEPC 84 established an intersessional working group to address outstanding issues and scheduled work on 1–4 September and 23–27 November 2026 before MEPC 85. Resumption of the extraordinary session is planned for 4 December 2026, subject to confirmation by MEPC 85; no entry-into-force date yet exists. | Primary source ↗ Learn more → |
| 6 December 2023 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | ISM Code -- Res. A.1188(33)
| New 2023 Guidelines on Implementation of the ISM Code by Administrations: reinforce the emphasis on safety culture and the real (not just formal) quality of internal audits and Management Review. | Primary source ↗ Learn more → |
| May 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Non-mandatory MASS Code — responsibility and SMS
| The non-mandatory MASS Code was adopted in May 2026. IMO work retains the principle that safe operation must remain attributable to a responsible entity; Companies applying the MASS framework should address remote and autonomous operations in risk management and the SMS where relevant. A future mandatory framework targeted around 2032 requires further IMO decisions and is not automatic. | Primary source ↗ Learn more → |
| 1 January 2024 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Chapter IV -- GMDSS modernisation
| Specific references to Inmarsat replaced with the generic term RMSS (Recognized Mobile Satellite Service); Sea Area A3 redefined; the NBDP function removed for MF/HF equipment. | Primary source ↗ Learn more → |
| 2024-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Chapter III -- LSA Code
| The amendments distinguish free-fall and davit-launched lifeboats under the SOLAS III/33.2 five-knot requirement. The exception for rescue boats not exceeding 700 kg concerns cargo ships, boats that are not survival craft, and cumulative handling conditions, not every light rescue boat. | Primary source ↗ Learn more → |
| 2026-01-01 / 2029-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS -- 2026 consolidated edition
| MSC.535(107): distinguish amendment entry into force from application to totally enclosed lifeboats installed from 1 January 2029. A SOLAS publication edition date does not itself create a new requirement. | Primary source ↗ Learn more → |
| 2026-07-01 · Editorial check: 2026-09-16 · Topic: 2026-10-14 | Paris MoU Annual Report 2025
| The Paris MoU 2025 report gives a regional detention rate of 4.18% and 19 refusals of access. This is a statistical report, not a new detention rule; use the correct period and denominator for comparisons. | Primary source ↗ Learn more → |
| 1 September - 30 November 2026 · Editorial check: 2026-10-15 · Topic: 2026-10-15 | Paris MoU/Tokyo MOU — CIC Cargo Securing 2026
| The campaign is ongoing on 15 October 2026 within the announced window. Its questionnaire accompanies routine PSC inspections and checks existing SOLAS requirements: prepare the manual, securing devices, stowage and evidence of procedures being applied within the relevant scope. | Primary source ↗ Learn more → |
| 1 January 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-15 | IMDG Code -- Amendment 42-24 (Res. MSC.556(108))
| The 2024 edition of the IMDG Code becomes mandatory: new UN numbers for sodium-ion batteries, battery-powered vehicles and other products; ends the voluntary/transition period that began in 2025. | Primary source ↗ Learn more → |
| 2026-01-01 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | STCW -- training on violence, harassment and bullying
| The PSSR competence on preventing and responding to violence and harassment is in force. The comprehensive STCW review is a separate process: 2027 is not presented as a certain completion or new-requirement date. | Primary source ↗ Learn more → |
| 2024-07-01 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | IACS UR E26 / E27 -- Cyber Resilience
| UR E26/E27 Rev.1 apply to newbuildings contracted for construction on or after 1 July 2024 within their respective type, size, ship and system scopes. Do not automatically extend the requirements to every existing ship at renewal. | Primary source ↗ Learn more → |
| 3 December 2025 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | HSSC -- Res. A.1207(34)
| A.1207(34) adopts the 2025 Survey Guidelines under the HSSC and revokes A.1186(33). The guidelines harmonize survey and certification cycles covered by the HSSC instruments; they do not automatically synchronize every statutory regime, MLC, ISPS or class. | Primary source ↗ Learn more → |
| 1 January 2024 - 2027 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | EU maritime ETS
| Gradual extension of the EU ETS to shipping: allowances to be surrendered for 40% of verified emissions for the year 2024, 70% for 2025 and 100% from 2026 onwards (Article 3gb); surrender falls due by 30 September of the following year; from 2026, CH4 and N2O are included in addition to CO2. | Primary source ↗ Learn more → |
| 1 January 2025 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | FuelEU Maritime -- Reg. (EU) 2023/1805
| The obligation to reduce the greenhouse gas intensity of energy used on board comes into force: -2% versus the 2020 baseline for 2025-2029, with five-yearly increases through 2050. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Environmental Vetting and GHG Rating
| RightShip GHG Rating A–E is distinct from Safety Score, inspection age trigger and charterer policies; nomination consequences require a current attributable policy. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2025 — A.1206(34) · Editorial check: 2026-09-16 · Topic: 2026-09-16 | PSC Procedures -- Res. A.1206(34)
| The 2025 PSC Procedures also address security controls and clear grounds. The Duly Authorized Officer role derives from SOLAS XI-2/ISPS and is not first introduced by this revision. | Primary source ↗ Learn more → |
| 2025 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Tokyo MOU Annual Report 2025
| In 2025: 1,255 detentions, ships of 73 flags and a detentions-to-inspections ratio of 3.53%. The historical Ballast Water Management CIC (1 September–30 November 2025), conducted with the Paris MoU, identifies BWMS operation as the most frequent campaign deficiency. | Primary source ↗ Learn more → |
| 1 July 2026 - 30 June 2027 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | USCG QUALSHIP 21 — program guidance and flag list
| WI-002(2), revised on 14 January 2026, is guidance for the QUALSHIP 21/E-Zero programs, rather than a separate legally binding rule. Bahamas and Marshall Islands appear in the qualified flag list for the stated period; flag qualification precedes the individual vessel’s separate enrollment. | Primary source ↗ WI-002(2) Learn more → |
| 1 January 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Polar Code -- Res. MSC.538(107)
| New mandatory navigational safety and voyage planning requirements (Chapters 9-1 and 11-1) extended to fishing vessels ≥24m, non-commercial yachts ≥300 GT and cargo ships 300-500 GT; full compliance required by 1 January 2027 for existing ships. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Electronic Navigation and GNSS Resilience
| Multi-band, multi-constellation, RAIM, authentication and CRPA may mitigate GNSS risk but do not guarantee a valid fix during jamming or spoofing: plausibility checks and independent sources remain necessary. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2021 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | VTS -- Res. A.1158(32)
| Updated Guidelines for Vessel Traffic Services, replacing Res. A.857(20) of 1997, with clarifications on roles, responsibilities and preservation of the Master's authority. | Primary source ↗ Learn more → |
| 2024-03-11 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | EU F-gas Regulation 2024/573
| Regulation (EU) 2024/573 entered into force in March 2024. Duties depend on activities, gases and equipment category, not simply an EU flag. Do not automatically extend category-specific leak checks and certification to every shipboard refrigeration plant. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Anchor and Chain Cable Survey
| Anchors and chain cables are ranged/examined at Special Survey; gauging is required from Special Survey No.2 onward or where class Rules/surveyor require, not link-by-link every cycle. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Cargo Hold Survey for Bulk Carriers (ESP)
| Bulk-carrier survey extent follows the 2011 ESP Code and Z10.2/Z10.5; UR Z11 concerns notations and does not authorise drone surveys. RIT needs case-specific class acceptance and is not generally recognized by ESP since 2025. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2025 / 2027-12-23 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | MLC 2006 -- Code Amendments
| The MLC amendments approved in 2025 follow the acceptance process and expected entry into force on 23 December 2027. Do not defer already effective duties to that date; the certificate and DMLC must reflect the provisions applicable at the relevant time. | Primary source ↗ Learn more → |
| July 2023 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | 2023 IMO Biofouling Guidelines -- Res. MEPC.378(80)
| New global guidelines for the control and management of biofouling, replacing the previous 2011 version. | Primary source ↗ Learn more → |
| April 2025 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | MEPC 83 -- In-water cleaning guidance and binding biofouling framework
| Guidance on in-water cleaning approved; development of a legally binding biofouling framework agreed. | Primary source ↗ Learn more → |
| 2024 / 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Revised Guidelines on Underwater Radiated Noise -- MEPC.1/Circ.906/Rev.1
| The revised URN Guidelines are voluntary. MEPC 84 agreed in principle to extend the experience-building phase to the end of 2028; do not present 2026 as its definitive end. | Primary source ↗ Learn more → |
| 1 January 2023 · Editorial check: 2026-10-17 · Topic: 2026-08-28 | AFS Convention -- cybutryne controls
| Application and reapplication of systems containing cybutryne are prohibited. For the external coating layer present on 1 January 2023, removal or a barrier at the next scheduled renewal, no later than 60 months after the last application, subject to the exceptions to this second obligation. | Primary source ↗ Learn more → |
| 2024 (Supplement edition) / 1 January 2026 (Amendment 42-24 mandatory) · Editorial check: 2026-09-16 · Topic: 2026-09-16 | IMDG Code Supplement 2024 -- revised EmS Guide and MFAG
| The EmS Guide and MFAG have been updated in line with Amendment 42-24, incorporating new entries for lithium-ion, sodium-ion batteries and battery-powered vehicles. The Supplement is not mandatory: neither the EmS Guide nor the MFAG is a binding instrument — Amendment 42-24 of the IMDG Code is. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Lithium Batteries: Thermal Runaway and Fire Response on Board
| Lithium-battery fire response follows the UN entry, EmS schedule and ship-specific procedures; SP376 separates the critical P911/LP906 branch from other damaged/defective P908/LP904, without improvised onboard diagnosis. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Adopted MSC 111 (May 2026), voluntary from 2027, mandatory from 2028 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMDG Code Amendment 43-26 -- SP980 vehicle transport
| New Special Provision SP980 and updates to SP961/SP962 for transporting conventional-fuel, hybrid and lithium-battery vehicles, continuing on from Amendment 42-24. | Primary source ↗ Learn more → |
| 2026-01-01 / MSC 111 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IGC Code -- amendments on materials and alternative fuels
| MSC.523(106) on materials entered into force on 1 January 2026. Distinguish the IGC package approved at MSC 111 for later adoption and interim liquefied-hydrogen recommendations, which have their own instrument. | Primary source ↗ Learn more → |
| MEPC 84 — 2026 · Editorial check: 2026-10-17 · Topic: 2026-10-17 | BWM Convention -- draft amendments and new G4 Guidelines
| The BWM revision is a draft approved for subsequent adoption, not an effective requirement. Do not set a 2028 commencement or anticipate an annual performance test. Distinguish the adopted 2026 G4 and deferred revocation of previous guidance. | Primary source ↗ G4 2026: MEPC.409(84) ↗ Learn more → |
| 2025 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Black Sea MOU Annual Report 2025
| For 2025 the report records 347 detentions in 5,117 inspections: 6.78% is the detentions-to-inspections ratio, distinct from the individual-vessel rate. The percentage comparison with 2024 is omitted here because the same report page gives both 4.69% and 4.71%. | Primary source ↗ Learn more → |
| 2025 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Indian Ocean MOU — 2025 PSC data in the official presentation
| The official presentation of the 2025 report gives 5,958 inspections and 261 detentions. The arithmetic ratio 261/5,958 is approximately 4.38%. These annual figures describe regional activity and do not constitute a selection threshold for an individual ship. | Primary source ↗ Learn more → |
| Operational context — 15 October 2026 · Editorial check: 2026-10-15 · Topic: 2026-10-15 | Heavy Lift Cargo and Project Cargo
| Annex 13 assists competent ship’s staff and qualified shore personnel in assessing securing outside the CSM. For heavy lift and project cargo, compare reliable data, supports and securing with the CSM and ship limits, completing the checks and acceptance or approval required for the case. Independent survey depends on applicable requirements and agreements, not on a universal IMO duty. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | BNWAS and Anti-Collision Alert Systems
| BNWAS monitors watch activity and calls assistance if the OOW does not respond. It must operate whenever the ship is underway at sea; MSC.1/Circ.1474 advises against using the automatic mode linked to autopilot. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Predictive Maintenance based on IoT Sensors
| From sensor to decision: identifiable, comparable data help observe condition, verify an anomaly and follow up work. Diagnosis and prognosis need evidence and limits; PMS retains responsibilities, tasks and outcomes. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Predictive Maintenance based on IoT Sensors
| From sensor to decision: identifiable, comparable data help observe condition, verify an anomaly and follow up work. Diagnosis and prognosis need evidence and limits; PMS retains responsibilities, tasks and outcomes. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Managing Shipyard Repair Contracts
| The repair specification, tender and contract must follow project complexity, risk, market and ship due dates; REPAIRCON 2018 is a contract form, not a universal docking timeline. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Managing Surveys under Dual/Multiple Classification
| Double class and dual class describe different arrangements. Survey responsibilities must follow the participating societies’ documents. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2026-06-01 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | IMO Guidelines for the Use of Electronic Certificates -- consolidation
| FAL-LEG-MEPC-MSC.1/Circ.1 is the current joint circular on electronic certificates; it revokes FAL.5/Circ.39/Rev.2 and MSC.1/Circ.1665. Also check Administration implementation. | Primary source ↗ Learn more → |
| March 2026 · Editorial check: 2026-10-13 · Topic: 2026-10-13 | IMO Strategy on Maritime Digitalization -- FAL 50
| Strategy approved by the FAL Committee making digitalization a cross-cutting IMO policy, emphasising interoperability and data governance. FAL approval does not constitute Assembly adoption, envisaged in the announced process for 2027. | Primary source ↗ Learn more → |
| MEPC — work plan · Editorial check: 2026-09-16 · Topic: 2026-09-16 | MEPC -- Onboard Carbon Capture and Storage (OCCS)
| OCCS accounting, testing and certification remain under regulatory development. A work-plan target guarantees neither a complete framework in 2028 nor automatic EEXI/CII credits. | Primary source ↗ Learn more → |
| 2029-12-31 / 2030-01-01 / 2035-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | EU AFIR Regulation and FuelEU Maritime -- Shore Power
| AFIR and FuelEU impose distinct duties. For container and passenger ships above 5,000 GT, check AFIR ports and thresholds, the berth, electrical demand and FuelEU ship duties from 2030/2035. Qualifying zero-emission technology or specific Article 6(5) exceptions may apply and must be documented. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Wind-Assisted Propulsion Systems (WAPS)
| WAPS can reduce propulsion power and fuel use in favourable conditions, but benefit depends on the ship, route, wind, arrangement and auxiliary loads and must be verified against a comparable baseline. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 1 January 2025 (in force) → 1 January 2027 (new amendments) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMSBC Code -- 2025 edition
| 12 new cargo schedules and amendments to 11 existing ones; new amendments expected in force from 1 January 2027, with voluntary application possible from 1 January 2026. | Primary source ↗ Learn more → |
| 1 January 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMDG Code Amendment 42-24 -- marine pollutant criteria
| Marine pollutant classification criteria relevant for MARPOL Annex III also updated, in line with the new entries introduced by Amendment 42-24. | Primary source ↗ Learn more → |
| 2024 / 2026 / 2027 · Editorial check: 2026-09-16 · Topic: 2026-10-17 | Polar Code Part II-A and the Arctic HFO ban
| Separate polar discharge prohibitions, the HFO ban with transitional branches, and navigation requirements. Navigation amendments entered into force in 2026 for the categories concerned, with the specified existing-ship transition to 2027; they do not create new discharge permissions. | Primary source ↗ Learn more → |
| Through 2028 (review under way) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Review of the ISM Code implementation guidelines
| The IMO is conducting a three-year review of the ISM guidelines, with recommendations on non-conformity complaint procedures, strengthening the Master's authority and preventing violence/harassment on board. | Primary source ↗ Learn more → |
| 2025-2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | FSS Code -- Res. MSC.555(108)
| Amendments to Chapters 7 (water-spraying/water mist) and 9 (fire detection); new requirement for fixed water systems on exposed Ro-Ro passenger decks with keels laid from 1 January 2026. | Primary source ↗ Learn more → |
| SDC 12, January 2026 → MSC 111, May 2026 (item closed) · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS II-2/13.4 -- escape routes: review concluded with no amendments
| SDC 12 concluded that regulations II-2/13.4.1.1 and 13.4.2.1 are not to be amended: no safety issue was demonstrated. MSC 111 noted this and closed the item; MSC.1/Circ.1689, which SDC 12 had proposed to revoke, was instead amended, and continues to invite PSC authorities to take a pragmatic approach to the interpretation of “lower part of the space”. | Primary source ↗ Learn more → |
| 2025 — A.1206(34) · Editorial check: 2026-09-16 · Topic: 2026-10-14 | Resolution A.1206(34) -- PSC and security procedures
| The 2025 PSC Procedures also address security controls and clear grounds. The Duly Authorized Officer role derives from SOLAS XI-2/ISPS and is not first introduced by this revision. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-15 | Break Bulk Cargo: Stowage, Dunnage and Damage Prevention
| For break bulk, weight, dimensions and centre of gravity come from reliable data and are verified according to risk; the evidence package follows cargo and contract and does not require draft surveys at every stage. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-16 | Charter Parties and Cargo-Specific Clauses
| Laytime, demurrage and despatch normally belong to voyage chartering; safe port/berth, always safely afloat and NAABSA are distinct terms to be read in the wording actually incorporated. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Icebreaker-Assisted Convoy Navigation
| Icebreaker and convoy-control instructions are essential, but the Master and bridge team continuously assess safety against the ship's actual capabilities and conditions and immediately communicate any inability to comply. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Icebreaker-Assisted Convoy Navigation
| Icebreaker and convoy-control instructions are essential, but the Master and bridge team continuously assess safety against the ship's actual capabilities and conditions and immediately communicate any inability to comply. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Datum Shift and Chart Reference in ECDIS
| A charted feature may be uncertain even when the GNSS fix is precise: horizontal position, sounding datum, height datum and quality/CATZOC are distinct issues to assess without improvised manual offsets. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Digital Twin for the Engine Room
| A digital twin is a voluntary tool: value and reliability depend on the use case, data, model, validation and decision risk; industry guidance and assurance frameworks help define and verify its use. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Digital Twin for the Engine Room
| A digital twin is a voluntary tool: value and reliability depend on the use case, data, model, validation and decision risk; industry guidance and assurance frameworks help define and verify its use. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Dry Dock Scheduling for Sister Ships (Sister Ship Scheduling)
| Evidence from a sister ship can improve the next docking, but every data point and work item must be revalidated against the individual ship’s configuration, condition, due dates and history. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Interim Certificates
| Interim DOC, SMC, ISSC and Maritime Labour Certificates are distinct mechanisms with their own conditions and durations; they attest interim conditions, not completed definitive verification. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Methanol and Ammonia Bunkering: Infrastructure and Real Cases
| Methanol/ammonia bunkering availability is route- and port-specific: verify supplier, transfer mode, approval, technical standard and emergency arrangement directly. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Just Transition and the Social Impact of Decarbonization
| The transition requires competence tied to the actual fuel, technology, role and arrangement: STCW.7/Circ.25, .26 and .27 provide interim guidance, while MJTTF frameworks remain non-mandatory resources. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 1 January 2025 (scope) → 2026 (review) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | EU MRV Regulation -- extended scope and EU ETS review
| MRV scope extended from 2025 to offshore and general cargo ships not below 400 GT; the European Commission will conduct a review of the maritime EU ETS scope in 2026, with possible further extension below 5,000 GT. | Primary source ↗ Learn more → |
| 1 August 2025 (in force); ordinary collection from 1 January 2026 · Editorial check: 2026-10-17 · Topic: 2026-10-17 | MARPOL Annex VI -- Res. MEPC.385(81) IMO DCS
| Appendix IX to Annex VI is replaced in full: transport work for regulation 28 ships only and consumption granularity by fuel and consumer for regulation 27 ships. Circ.913 distinguishes ordinary implementation from 2026, flag early implementation from 2025 (Part II revised/verified beforehand, or at delivery for new deliveries from 1 January 2025), and collection from delivery for ships delivered on or after 1 August 2025. Do not assign one date to all branches. | Primary source ↗ Timetable: MEPC.1/Circ.913 ↗ Learn more → |
| 1 January 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | STCW -- Table A-VI/1-4, PSSR training on violence and harassment
| New minimum mandatory competency in Personal Safety and Social Responsibilities training on preventing and responding to violence, sexual harassment, bullying and sexual assault on board. | Primary source ↗ Learn more → |
| 2026-01-01 / 2028-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Regulation II-2/20 and FSS Code Ch. 9 -- Res. MSC.550(108)/MSC.555(108)
| MSC.550(108) and MSC.555(108) have requirements and transitions specific to ship type, spaces and systems. For relevant existing passenger ships check each retrofit and the relevant survey from 2028; do not indiscriminately extend all newbuilding requirements. | Primary source ↗ Learn more → |
| 2026-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Chapter II-1, new Regulation 3-13
| SOLAS II-1/3-13 governs lifting appliances and anchor handling winches within its scope. Distinguish new and existing installations, exclusions and the first renewal survey from 2026; not every onboard winch is automatically included. | Primary source ↗ Learn more → |
| 1 January 2026 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Mediterranean MOU — accession of France and Albania
| France and Albania accede from 1 January 2026; the official list comprises 13 authorities. Separately, the 2024 report records 196 detentions in 5,993 inspections. Its narrative gives a 20% increase, while the table rises from 157 to 196 detentions, approximately +24.8%: the report’s inconsistency remains explicit. | Primary source ↗ Annual Report 2024 Member authorities Learn more → |
| Q1 2026 · published 29 April 2026 · Editorial check: 2026-10-15 · Topic: 2026-10-15 | DNV — Port State Control Q1 2026 detention review
| DNV records 64 detentions in its fleet in Q1 2026; container, bulk carrier and general cargo ships together account for 83%. The aggregate does not measure an individual bulk carrier’s risk: use it alongside the ship’s history and actual condition. | Primary source ↗ Learn more → |
| 2026-01-01 / 2027-01-01 · Editorial check: 2026-09-16 · Topic: 2026-10-15 | IMSBC Code -- Amendment 08-25
| These dates concern IMSBC amendment 08-25: permitted early application from 2026 and mandatory application from 2027. They are not new BLU Code commencement dates and do not authorise unilateral crew choice. | Primary source ↗ Learn more → |
| 1 January 2026 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | SOLAS Chapter V, Regulations 31/32 -- Res. MSC.550(108)
| Loss of freight containers must be reported to nearby ships, the nearest coastal State and the flag State; observation alone to nearby ships and the nearest coastal State. The flag State forwards loss information to IMO. Fields and follow-up reflect the two distinct cases in regulations 31/32. | Primary source ↗ Learn more → |
| STCW review · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Five-year STCW review -- replacing sea service with simulator training
| Proposals for simulator credit remain under discussion. Do not treat three months as a universally available replacement for sea service: current STCW requirements and Administration approvals govern. | Primary source ↗ Learn more → |
| Adopted at MSC 111 (13-22 May 2026), takes effect from 1 July 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | MASS Code -- MSC 111
| The non-mandatory IMO Code was adopted by MSC.595(111) and took effect on 1 July 2026 for cargo ships within SOLAS chapter I. The experience-building phase will inform separate work on a future mandatory code, whose adoption and entry into force remain targets subject to further IMO decisions. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Methanol Engines: Reliability and Spare Parts Management in a Still-Young Technology
| Methanol-engine reliability also depends on fuel supply, auxiliary circuits and protections. Linking observed condition, diagnosis and component revision supports planning of maintenance and spares that can actually be used on the installed plant. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Fire Safety of Onboard Battery Rooms (BESS)
| BESS response follows the approved emergency plan and installed design: alarm, segregation only as designed, ventilation control and approved fixed suppression/cooling from a safe position; no entry until explosion/toxic risk is assessed and authorised. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 26 June 2025 (in force) → 26 June 2030 (ICIHM obligation) · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Hong Kong International Convention -- ship recycling
| The Convention entered into force on 26 June 2025. A ship-specific IHM follows the ship through its life and existing ships follow the applicable transitional period; the final survey and International Ready for Recycling Certificate apply only when the ship is destined for recycling. “Green Passport” is not the legal name of that certificate. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Next-Generation Coating: Planning the Dry Dock Choice
| Select the external anti-fouling system against AFS compliance, operating profile and planned maintenance. Advertised coating life does not change bottom-survey and docking due dates. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Hot Work Permit at the Shipyard: Ship-Dock Coordination
| The hot-work permit must coordinate ship and yard: permission to enter a space does not mean welding or cutting is permitted inside it. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Change of Flag and the Shadow Fleet: What Changes for Surveys and Certificates
| At a flag transfer the printed expiry date of old certificates cannot be relied upon: each instrument has its own transfer provision and new-Administration documents must be effective when required. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2025-10-01 — campaign start · Editorial check: 2026-10-13 · Topic: 2026-10-13 | OCIMF -- SIRE 2.0 Focused Inspection Campaign
| The 29 October 2025 press release announced at least six months from the 1 October start; an official OCIMF post instead states February 2026. The duration statements differ and do not establish the campaign’s status on 13 October 2026: confirm with OCIMF before applying campaign questions. | Primary source ↗ Post OCIMF ↗ Learn more → |
| Res. MEPC.400(83), adopted 11 April 2025 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | G3 Guidelines (MARPOL Annex VI, reg. 28.5) -- CII 2027-2030 Reduction Factors
| The reduction factors (Z) for 2027-2030 were adopted by res. MEPC.400(83), which amends the G3 Guidelines: they sit in the guidelines, not in the Convention text. Revised SEEMP Part II with a new Confirmation of Compliance required on board from 1 January 2026, with data granularity extended to transport work. | Primary source ↗ Learn more → |
| 1 January 2026 (mandatory) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMDG Code -- Amendment 42-24
| Becomes the mandatory edition of the IMDG Code from 1 January 2026, with implications also for the classification and segregation of non-containerised dangerous goods and Class 7 entries. | Primary source ↗ Learn more → |
| INF / IMDG · Editorial check: 2026-09-16 · Topic: 2026-09-15 | INF Code -- transport of irradiated nuclear fuel
| The INF Code and IMDG have distinct scopes. Check INF certification, cargo, route, port and national requirements: the INF Code alone does not require prior approval from every coastal State for every shipment. | Primary source ↗ Learn more → |
| MSC 111 — 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Safe Return to Port -- SOLAS II-1/8-1, II-2/21-22
| MSC 111 approved MSC.1/Circ.1369/Rev.1 as non-binding guidance. Explanatory Notes dates do not replace the scope of SOLAS SRtP requirements; obtain the final text through the flag Administration before applying its details. | Primary source ↗ Learn more → |
| 2015-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Regulation III/19 -- passenger musters
| Where passengers are scheduled aboard for more than 24 hours, newly embarked passengers muster before or immediately upon departure. Distinguish the safety briefing for each new embarkation, immediately before or after departure. | Primary source ↗ Learn more → |
| Consolidated framework, verified 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | SOLAS 2020 -- Ro-Ro Passenger Damage Stability
| Subdivision index (R) and survival factor (s-factor) strengthened globally for all passenger ships, not for ro-ro ships only, to a standard comparable with the 1996 Stockholm Agreement. The test in regulation II-1/1.1.1 has three alternative conditions: contract from 1 January 2020, keel from 1 July 2020, delivery from 1 January 2024. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Managing a Gastrointestinal Outbreak on Board
| Each AGE case is identified and managed promptly under the applicable plan; in VSP, 2% triggers a special report and 3% or an unusual pattern triggers outbreak/investigation criteria, separately for passengers and crew. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Binding from 28 June 2025 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | European Accessibility Act -- EU Directive 2019/882
| Extends the accessibility obligation for passenger shipping services to travel information, e-ticketing and self-service terminals, in addition to the physical requirements of EU Regulation 1177/2010. | Primary source ↗ Learn more → |
| Ro-ro from 1 July 1999; other passenger ships from 1 January 2020 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | MSC.1/Circ.1533 -- Evacuation Analysis
| The obligation belongs to regulation SOLAS II-2/13.3.2.7, not to the circular: it covers ro-ro passenger ships constructed on or after 1 July 1999 and other passenger ships constructed on or after 1 January 2020 carrying more than 36 passengers. MSC.1/Circ.1533 is the guidance on method, simplified or advanced, and says so of itself. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SAR Cooperation Plan on Passenger Ships
| For passenger ships subject to SOLAS Chapter I. Knowing who to call in an emergency is not enough: the cooperation plan with search and rescue services must be built together with those services, kept up to date and exercised. The Regulation sets no frequency: the twelve months come from the guidelines, and they are a ceiling with a presumption of compliance, not an annual obligation. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Consolidated framework, verified 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMO Resolution A.1207(34) -- Passenger Ship Safety Certificate
| Maximum validity of 1 year for the PSSC, renewed via a full annual survey, departing from the five-year regime of other statutory certificates. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Gangway Operations: Safety of the Accommodation Ladder
| The revised guideline distinguishes design, fall protection and operational measures: PPE, safety net and access control depend on configuration, risk, Administration and SSP/SMS. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Tender Operations: Service Boats for Passenger Transfer
| MSC.1/Circ.1417 recommends controls for ship-carried craft transferring more than 12 passengers from a stationary ship to shore and back; binding effect and extension depend on implementation and the SMS. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Passenger Accounting: The Accuracy of the Roll-Call after Costa Concordia
| SOLAS III/27 governs counts and information before departure; during an emergency, the accountability method comes from the ship's approved procedure and SMS. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Consolidated framework, verified 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | STCW Section A-V/2 -- Crowd Management
| Mandatory competencies in managing passenger flow to muster stations, distinct from the design-stage evacuation analysis calculation. | Primary source ↗ Learn more → |
| In force since 2010 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Cruise Vessel Security and Safety Act (CVSSA) -- cabin safety
| CVSSA requires visual identification at passenger and crew cabin doors; security latches and time-sensitive keys apply only to keels laid after 27 July 2010. The 25 mm figure is a USCG policy acceptance threshold, not a statutory dimension. Check the cumulative §3507(k) scope. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | The Onboard Medical Centre: Between MLC and Voluntary Standards
| The MLC minimum operates alongside applicable national medical duties. US sections 3507 and 3509 also incorporate ACEP within their respective scopes; distinguish these duties from CLIA commitments and voluntarily adopted standards. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | Gangway Operations: Safety of the Accommodation Ladder
| The revised guideline distinguishes design, fall protection and operational measures: PPE, safety net and access control depend on configuration, risk, Administration and SSP/SMS. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Turnaround Operations: Managing Simultaneous Operations in Port
| SIMOPS is a company method that may be integrated into the SMS: authority, interfaces and stop-work responsibility must be clear, while role titles, toolbox talks and ALARP depend on the adopted framework. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Res. MEPC.407(84), adopted 1 May 2026; in force 1 September 2027, SOx/PM limits from 1 September 2028 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | MARPOL Annex VI -- North-East Atlantic ECA
| New Emission Control Area for SOx, PM and NOx in the North-East Atlantic, alongside the existing ECAs. Entry into force of the amendment and application of the limits are separate dates: the sulphur (0.10% m/m) and particulate limits bite twelve months later. | Primary source ↗ Learn more → |
| MEPC 84 — draft · Editorial check: 2026-10-17 · Topic: 2026-10-17 | MARPOL Annex I -- draft regulation 12B
| Future regulation 12B is approved as a draft for subsequent adoption and is not in force. Current operations follow MARPOL I/12–15 and relevant IBTS guidance, without treating proposal details as final requirements. | Primary source ↗ Learn more → |
| Adopted MEPC 84 (2026) · Editorial check: 2026-10-17 · Topic: 2026-10-17 | 2026 IMO Strategy and Action Plan -- Marine Plastic Litter
| MEPC 84 adopted the 2026 Strategy and Action Plan on marine plastic litter through MEPC.417(84), updating and superseding the 2021 Strategy and 2025 Action Plan. Separately, the Committee agreed to develop a mandatory code for carriage of plastic pellets in freight containers; that code remains under development. | Primary source ↗ Learn more → |
| HTW 12, 23-27 February 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | HTW scoping exercise -- hours of work and rest
| Formal assessment launched of the effectiveness of STCW/MLC rules on hours of work and rest, coordinated with sub-committee III; completion expected in 2027. | Primary source ↗ Learn more → |
| Through 2028 (review under way) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Review of ISM Guidelines -- shore-side violence/harassment infrastructure
| Revision of ISM guidelines remains under development. Possible new recommendations on reporting channels and support must not be presented as an already adopted additional duty; current applicable requirements remain in place. | Primary source ↗ Learn more → |
| 2028 / 2029 / 2030 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Regulation V/23 -- new Pilot Transfer Arrangements performance standard
| From 2028 Parts D/E apply to all arrangements and Parts A–C to new installations. For earlier installations: first survey on or after 1 January 2029 for SOLAS I ships, or by 1 January 2030 for others. There is no single 2029 deadline for every ship. | Primary source ↗ Learn more → |
| 2026-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | SOLAS Chapter II-2 -- flashpoint declaration
| Check the supplier declaration and BDN information/declaration required by SOLAS II-2/4.2.1.6. Flashpoint is determined using IMO-acceptable standards appropriate to the product: ISO 2719 is not the sole permitted formulation for every fuel. | Primary source ↗ Learn more → |
| Paris MoU 59 — 2026 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Paris MoU -- guidance on fraudulent certificates and registrations
| Work has begun on guidance concerning fraudulent documents and registrations. Do not present this work as final adopted guidance; document checks and PSC actions follow the current regime. The public catalogue consulted on 14 October 2026 does not list specific guidance; this check does not exclude non-public authority instructions. | Primary source ↗ Learn more → |
| 31 December 2026 (MSI providers' target) → 1 January 2028 (SOLAS amendments) · Editorial check: 2026-09-16 · Topic: 2026-09-15 | SOLAS -- voluntary VDES and MSI dissemination via all RMSS
| Voluntary introduction of the VHF Data Exchange System as an alternative to AIS, adopted at MSC 111 and in force from 1 January 2028. On the same date the amendments to Regulations IV/5, V/4 and V/5 require the dissemination of MSI and SAR-related information through all operational RMSS. The 31 December 2026 target agreed at MSC 108 falls on MSI providers: for the ship there is no multi-RMSS reception obligation. | Primary source ↗ Learn more → |
| 2026–2028 / 2029-01-01 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Next generation ECDIS -- S-100 Framework
| MSC.530(106)/Rev.1: the S-100-capable standard may be used for new installations in 2026–2028 and is required for new installations from 2029. This is not a universal retrofit requirement for every existing ECDIS. | Primary source ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Ammonia Engines: Safety and Reliability of the First Units in Service
| Ammonia-engine safety and reliability also depend on supply, containment, detection, ventilation and services. Understanding the installed arrangement, observing abnormalities and documenting response, maintenance and results supports availability assessment with comparable service evidence. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Cyber Risk Management of Automation Systems
| A digital anomaly can become a problem with machinery control. Managing cyber risk in the engine room means understanding dependencies and access, controlling changes, and preparing response and recovery that keep essential services safe. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Bottom Survey and In-Water Survey (IWS)
| Cargo and passenger ships follow distinct bottom-inspection regimes; an ordinary IWS depends on Administration/RO acceptance and UR Z3 and is not Extended Dry-Docking. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Remote Inspection Techniques (RIT): Drone and ROV Inspections
| Drones, ROVs, thickness measurements and surveys without a surveyor on board require different checks. Before appointing a supplier, define the activity, limitations and class acceptance and, where required, flag acceptance. | Learn more → Revised-topic synthesis; sources are in the topic. |
| 2025-12-03 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | HSSC 2025 Guidelines — survey types and scope
| The Guidelines describe survey types and checks for each certificate. The programme connects the document, dates, examination scope and outcome; coordinated attendance retains the distinct requirements of the different instruments. | Primary source ↗ Learn more → |
| 2024-07-01 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | IP Code -- Industrial Personnel Safety Certificate
| Within SOLAS XV check the aggregate IP + special personnel + passengers threshold, tonnage and voyage. Previously authorised pre-2024 cargo ships and HSC have different transitional triggers; do not assert identical automatic expiry of all authorisations. | Primary source ↗ Learn more → |
| Draft — MEPC 83 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | IMO Net-Zero Framework -- Remedial Unit
| Remedial Unit values belong to the approved draft, not to effective charges. The framework is not adopted: prices, periods and commencement remain subject to subsequent decisions. | Primary source ↗ Learn more → |
| Adopted MSC 111 (May 2026), in force 1 January 2028, applicable from 1 January 2031 · Editorial check: 2026-09-16 · Topic: 2026-09-16 | LSA Code -- new par. 4.7.7, free-fall lifeboat testing
| Use of simulation equipment (cables/chains) regulated for testing the on-load release system without an actual launch into the water, with a minimum safety factor of 6 for the test equipment. | Primary source ↗ Learn more → |
| 59th Paris MoU Committee, in use from 1 July 2026 to 6 July 2027 · Editorial check: 2026-10-14 · Topic: 2026-10-14 | Paris MoU -- new 2026 flag/RO performance lists
| White/Grey/Black lists and the RO performance table recalculated over the 2023-2025 three-year period; 40 flags on the White List, with the Cayman Islands, Sweden, Norway, Denmark and Japan at the top. These are parameters used in PSC selection, not commercial vetting requirements. The RO method change announced for 6 July 2027 is a separate update. | Primary source ↗ Learn more → |
| Res. MSC.532(107), in force 1 January 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | SOLAS Regulation V/19.2.12 -- electronic inclinometers linked to the VDR
| Requirement for a type-approved electronic inclinometer (Res. MSC.363(92)) on new containerships and bulk carriers ≥3,000 GT with keels laid from 2026, to record roll motion in support of the VDR. | Primary source ↗ Learn more → |
| CCC 11, September 2025 · Editorial check: 2026-10-16 · Topic: 2026-10-16 | IMO -- organic work plan on container loss
| Historical CCC 11 context (September 2025): a Sub-Committee-endorsed work plan on operational guidance and limitations, conditions at sea, loading/stowage, securing strength and verification, and container strength and inspection. The plan guides development of measures and proposals; it is not an amendment already in force and remains distinct from the SOLAS reporting duties applicable from 2026. | Primary source ↗ Learn more → |
| MSC 111 — 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-12 | Ammonia as fuel -- Interim Guidelines approved
| Distinguish guidance for ammonia fuel, cargo-as-fuel use on gas carriers and training. Approval of interim guidelines does not establish universal commencement of new SOLAS/IGF amendments on 1 July 2028. | Institutional context ↗ Learn more → |
| Operational context — 16 September 2026 · Editorial check: 2026-09-16 · Topic: 2026-10-13 | Hong Kong Convention: Inventory of Hazardous Materials and Green Passport
| The Inventory of Hazardous Materials (IHM) must follow the individual ship and its modifications. For existing ships within HKC scope, the general deadline is 26 June 2030 or before recycling if earlier; check EU obligations separately. | Learn more → Revised-topic synthesis; sources are in the topic. |
| Approved at MEPC 84; subsequent adoption to be verified. No definitive entry into force stated. · Editorial check: 2026-09-16 · Topic: 2026-09-15 | BWM Convention — draft revision approved at MEPC 84
| The Convention amendments are approved drafts, not requirements already in force. Separately, MEPC.409(84) adopted the 2026 G4; revocation of the previous guidelines is deferred until the package enters into force. Do not anticipate an annual performance test or a definitive May 2028 commencement date. | IMO MEPC 84 MEPC.409(84) — G4 Read topic → |
| MSC 111 — 2026 · Editorial check: 2026-09-16 · Topic: 2026-09-15 | Liquefied hydrogen as cargo -- new Part D of the Interim Recommendations
| Revised interim recommendations for carriage of liquefied hydrogen are published as MSC.597(111). They remain interim recommendations subject to Administration conditions, not general IGC requirements for all gas carriers. | Primary source ↗ Learn more → |
Method and limitations
Each record carries an ID, topic, primary source, revision, fingerprint and separate status fields. Missing dates are not inferred from free text; a dash means the timeline has no verified structured date.
This timeline was verified against official IMO sources and the main classification societies at the time this page was created (July 2026). Always check the official consolidated text before any operational decision.
Date of substantive revision is not certifiable · page fingerprint 0f6eace7116b