Daniel Lucas

July 13, 2025, 10:02 p.m.

Big Changes on the Horizon for the Merchant Navy: New IMO Rules, a Course Set for Sustainability and Digitalization

London, UK – The global merchant navy and its regulatory body, the International Maritime Organization (IMO), are entering an era of radical transformation. In 2024 and 2025, the shipping industry faces stricter environmental standards, the active implementation of digital technologies, and the first steps towards autonomous navigation. These changes will affect every aspect of maritime transport – from ship design to daily operations.

The main driver of this transformation is the IMO, which is systematically tightening regulations on emissions from ships. The focus is on decarbonization and improving the energy efficiency of the fleet.


The IMO's Environmental Initiatives: A New Reality for Shipowners


As of January 1, 2024, updated requirements of Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL) have come into force. Key new regulations include:

  1. Mandatory Carbon Intensity Indicator (CII) Rating: All ships of 5,000 gross tonnage and above are now required to calculate and report their carbon intensity indicator. Each ship is assigned a rating from A (best) to E (worst). Ships that receive a D rating for three consecutive years or an E rating for one year must submit a corrective action plan.
  2. Energy Efficiency Existing Ship Index (EEXI): This requirement, aimed at the technical improvement of ships built before 2021, continues to be actively implemented. Shipowners are obligated to upgrade their fleets or apply technological solutions to reduce fuel consumption.

Furthermore, from May 1, 2025, the Mediterranean Sea will be designated a Sulphur Emission Control Area (SECA). This means that the sulphur content of fuel used by ships in this region must not exceed 0.10%.

The European Union is also contributing to the "greening" of the industry. From 2025, maritime transport will be more comprehensively covered by the EU Emissions Trading System (EU ETS), leading to increased fees for ships calling at European ports.


Fleet Growth and Modernization


Despite tightening regulations, the global merchant fleet continues to grow. Projections for 2024 indicate a growth of about 3.8%, with the largest expansion expected in the container and gas carrier segments. At the same time, there is a trend towards fleet modernization. The number of orders for ships capable of running on alternative fuels, such as liquefied natural gas (LNG) and, in the future, methanol and ammonia, is increasing.


Digitalization and Autonomous Shipping


Digitalization is no longer just a trend but a pressing necessity for the maritime industry. Systems for real-time monitoring of ships' technical condition, predictive equipment maintenance, and route optimization are being implemented. This not only increases efficiency but also contributes to the safety of navigation.

The era of autonomous shipping is on the horizon. Trials of highly automated vessels are already underway. In Russia, for example, the "Autonomous Navigation" project plans to create an autonomous port fleet and implement the necessary shore-side infrastructure. Although full autonomy for the merchant fleet is still a long way off, it is clear that technology will play an increasingly important role in ship management.


Safety and New Regulations


Against the backdrop of a rising number of fire-related incidents on ships, the IMO and national administrations are paying increased attention to safety issues in 2024. Specifically, amendments are being made to the International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF Code) and other regulatory documents.

Additionally, the third phase of the EU's Import Control System (ICS2) will come into effect on April 1, 2025, affecting maritime, road, and rail transport. It will require carriers to provide more detailed cargo information before arrival.

Collectively, these changes are creating a new paradigm for the global merchant navy, where sustainability, technology, and safety are becoming key factors for success and competitiveness. Shipping companies will have to adapt to these new realities by investing in modern technologies and crew training.

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