• On or before 1 January 2023, the Ship Energy Efficiency Management Plan (SEEMP) shall include methodology for calculating the ship's attained annual operational CII and the required annual operational CII.
  

• Operational CII - After the end of calendar year 2023 and after the end of each following calendar year, each ship of 5,000 gross tonnage and above, shall calculate the attained annual operational CII over a 12-month period from 1 January to 31 December for the preceding calendar year.
  

• The Attained annual operational CII shall be documented and verified against the required annual operational CII to determine operational carbon intensity rating A, B, C, D or E, indicating a major superior, minor superior, moderate, minor inferior, or inferior performance level, either by the Administration or by any organization duly authorized by it.
  

• A ship rated D for 3 consecutive years or rated as E shall develop a plan of corrective actions to achieve the required annual operational CII. 
  

1 January 2023 - STCW / ESP 

• Amendments  to International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW), adding the definition of "high-voltage" in STCW regulation I/1.

• Amendments to section A-I/1 of the STCW Code, including the capacity "electro-technical officer" in the definition of "operational level", as a consequential amendment to the introduction of this capacity as part of the 2010 Manila Amendments. 

• Amendments to the International Code on the Enhanced Programme of Inspections during Surveys of Bulk Carriers and Oil Tankers, 2011 (ESP Code), relating to thickness measurements at the first renewal survey of double hull oil tanker.

1 January 2023

• A minor amendment to chapter II (Conditions of assignment of freeboard), as well as amendments to chapter III (Freeboards) of annex I (Regulations for determining load lines) of Annex B to the 1988 Load Lines Protocol, concerning watertight doors on cargo ships, and associated amendments concerning watertight doors on cargo ships to chapter 2 (Ship survival capability and location of cargo tanks) of the International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code). 

• Amendments to the Facilitation (FAL) Convention which will make the single window for data exchange mandatory in ports around the world, marking a significant step in the acceleration of digitalization in shipping.
• Other amendments adopted include lessons learnt from the COVID-19 pandemic and add new and amended Recommended Practices to prevent corruption and illicit activities in the maritime sector.
• Mandatory Single Window - The amendments update the provisions of the FAL Convention on mandatory electronic data exchange in ports for ship clearance. The amendments to the annex of the Convention will make it mandatory for public authorities to establish, maintain and use single window (SW) systems for the electronic exchange of information required on arrival, stay and departure of ships in ports. In addition, public authorities will have to combine or coordinate the electronic transmission of the data to ensure that information is submitted or provided only once and re-used to the maximum extent possible. 
• Provisions derived from lessons learned during the course of the COVID-19 pandemic - Contracting Governments and their relevant public authorities are required to allow ships and ports to remain fully operational during a public health emergency of international concern (PHEIC), in order to maintain complete functionality of global supply chains to the greatest extent possible. Public authorities are also required to designate port workers and ships' crew as key workers (or equivalent), regardless of their nationality or the flag of their ship, when in their territory. Best practice recommendations aim to prevent obstacles to crew movement for repatriation, crew change and travel, and encourage dissemination of information about public health matters and expected protection measures by ship operators. 
• The amendments concerning arrival and departure of persons require public authorities to inform passengers about vaccination requirements sufficiently in advance of departure and vaccinators to use the International Certificate of Vaccination or Prophylaxis in order to assure uniform acceptance.
• Tackling maritime corruption - Updates to the FAL Convention take a systemic approach to addressing the issue of corruption associated with the ship-shore interface in ports. Contracting Governments are now required to encourage public authorities to assess the risks of corruption and address them by developing and implementing preventive measures to strengthen integrity, transparency and accountability. Public authorities are required to coordinate efforts to detect, investigate and sanction corruption related to ships' calls in the port, including through national and international cooperation.
• Updated definitions - The amendments bring in updated definitions and general provisions for various terms used in the Convention, establishing agreed terminology. This means that all stakeholders, whether at a port, onboard a ship or a third party (such as a public authority, etc.) will now have a clear consensus on the meaning of terms such as 'actual time of arrival', 'estimated time of arrival', 'authenticate', etc.

1 January 2024 MARPOL 

Adopted by MEPC 78:

• MARPOL Annex I in relation to watertight doors. 
  

• Mediterranean Sea Emission Control Area for Sulphur Oxides and particular matter - designation of Mediterranean Sea, as a whole, as an Emission Control Area for Sulphur Oxides and Particular Matter, under MARPOL Annex VI. In such an Emission Control Area, the limit for sulphur in fuel oil used on board ships is 0.10% mass by mass (m/m), while outside these areas the limit is 0.50% m/m. 

• Mandatory garbage record books for smaller ships -  amendments to MARPOL Annex V to make the Garbage Record Book mandatory also for ships of 100 gross tonnage and above and less than 400 gross tonnage. This extends the requirement for mandatory garbage record books to smaller ships, which will be required to keep records of their garbage handling operations, namely discharges to a reception facility ashore or to other ships, garbage incineration, permitted discharges of garbage into the sea, and accidental or other exceptional discharged or loss of garbage into the sea. The move supports implementation of IMO's Strategy and Action Plan to address marine plastic litter from ships.

• Protecting seas in the Arctic - regional arrangements for port reception facilities - amendments to the MARPOL annexes to allow States with ports in the Arctic region to enter into regional arrangements for port reception facilities. The amendments relate to MARPOL Annexes I (oil), II (noxious liquid substances), IV (sewage), V (garbage) and VI (air pollution). 

• EEXI, CII and rating values - amendments to appendix IX of MARPOL Annex VI on the reporting of mandatory values related to the implementation of the IMO short-term GHG reduction measure, including attained EEXI, CII and rating values to the IMO Ship Fuel Oil Consumption Database (IMO DCS).

• Fuel flashpoint in bunker delivery note - amendments to appendix V of MARPOL Annex VI, to include flashpoint of fuel oil or a statement that the flashpoint has been measured at or above 70ºC as mandatory information in the bunker delivery note (BDN).