With just 100 days remaining until the September 30 deadline for surrendering carbon allowances under the EU Emissions Trading System (EU ETS), maritime operators face a huge milestone in the field of maritime compliance.

Philippos Ioulianou, Managing Director of EmissionLink, part of Columbia Group, warns the consequences of missing this deadline are severe, and unavoidable.

“Fines, reputational risk and even port access restrictions are not distant threats. They could become very real when used as enforcement tools,” said Mr Ioulianou. “And yet, many operators are still not ready.”
The warning comes amid signs the industry was under-prepared for the scope and complexity of the ETS’s first compliance cycle. By the March 31 reporting deadline, fewer than 40% of shipping companies had submitted verified emissions data.

Mr Ioulianou points to a fundamental structural difference between the maritime sector and the ETS enforcement requirements.

“Shipping is global and fragmented by nature. The EU ETS is national and linear. That disconnect has made the compliance requirements unnecessarily difficult,” he said.

While EU member states are responsible for company registration, emissions verification, and the practicalities of setting up accounts, the speed and clarity of implementation have varied dramatically across jurisdictions, leaving many companies left in administrative limbo.

The impact is also being felt far beyond regulatory compliance. The scheme is already transforming commercial relationships across the shipping value chain. Contract negotiations between owners, operators, and charterers have become increasingly complex, with critical questions around ETS cost allocation. Who pays for allowances, who manages submissions, and how cross-regional voyages are handled are still lacking consistent answers.

In many cases, ship managers have taken on the responsibility of acquiring allowances on behalf of owners, often absorbing the financial risk in the hope of later reimbursement. This is especially challenging as some charterers delay transferring funds until just weeks before the surrender deadline, leaving owners and managers vulnerable to fluctuating EUA prices or potential non-payment.

The absence of standardised contractual frameworks has already led to delays, disputes, and even commercial standoffs, despite 2024 covering just 40% of applicable emissions. That figure will rise to 70% in 2025 and 100% in 2026.

With the timeline advancing and stakes rising, industry stakeholders face a steep learning curve, and little room for error.

“The learning curve is steep, and time is not on our side,” said Mr Ioulianou. “If delays, confusion and fragmented responsibility persist into future cycles, the financial and operational fallout could be far greater.”

On a more optimistic note, emissions reporting has accelerated recently, and leading operators are investing in digital compliance tools and advisory support.

“Digital platforms like EmissionLink are helping to streamline reporting, verification and allowance management. But systems alone won’t solve the problem,” said Mr Ioulianou. “We need shared responsibility, consistent regulatory guidance, and better contractual alignment.”

With ETS compliance increasingly tied to vessel earnings and reputation, Mr Ioulianou’s message to the maritime sector is clear:

“The real lesson of the EU ETS’s first year is this: the industry is capable, but the system must be credible and agile to fit the industry. The next 100 days will define more than a compliance cycle. They will determine which players see regulatory change as a burden, and which treat it as a strategic opportunity.”