The CJEU has dismissed all seven of Poland’s challenges to the Fit for 55 package. The rulings create no new obligations, but they confirm the direction of travel. What this means for businesses on ETS2, CBAM and energy efficiency — and why preparation matters now.
On 12 November 2026, the Court of Justice of the European Union dismissed all seven of Poland’s actions concerning parts of the Fit for 55 package. For businesses the message is clear: the contested rules remain in force, and preparing for change now matters more than waiting for it to be halted.
I commented on the case for both Strefa Biznesu and Money.pl. In this piece I bring those remarks together and develop them from the angle that matters most to companies: what actually changes, what the rulings do not change, and where to start.
Poland brought actions before the CJEU against several acts adopted under Fit for 55 — the EU’s programme to cut greenhouse gas emissions. The Court delivered seven judgments and dismissed the challenges in every case.
The contested areas included:
The rulings create no new obligations and do not, in themselves, change implementation deadlines. Their effect is that the contested acts remain in force as they stand.
Timelines under the individual rules — including CBAM and ETS2 — should therefore still be read from the legislation itself and any later amendments adopted by the EU institutions, not from the Court’s judgments.
Nor does this mean that every company is suddenly subject to every Fit for 55 mechanism. The scope of obligations depends on sector, scale, import profile, energy use and business model.
The outcome was not a major surprise. The challenges had a strong political dimension: they showed that Poland was using the legal tools available, even though the prospect of halting the transition altogether was always limited.
The energy transition cannot be “switched off” by a single judgment or a single political decision. What can be influenced are the details: the pace of implementation, transitional periods and protective mechanisms.
Poland has long-standing gaps to close, particularly on the energy efficiency of buildings. Extra time to adapt, investment financing and sensibly designed rules may matter more than a dispute over the principle of the transition itself.
Fit for 55 for businesses is not a single obligation but a set of mechanisms that work in different ways. Most companies will encounter them in a few areas.
The EU ETS mainly covers power generation, energy-intensive industry and parts of transport. ETS2 extends carbon pricing to fuels used in buildings and road transport. Compliance obligations under ETS2 fall mainly on fuel suppliers, but the cost may be passed on through energy and fuel prices — and so indirectly affect businesses outside the system.
CBAM applies to imports from outside the EU of specified goods, including steel, iron, aluminium, cement, fertilisers, hydrogen and electricity. For importers it means collecting emissions data from suppliers, reporting and settlement. This is where climate regulation meets customs law and the supply chain directly — and where CBAM advisory in Poland is increasingly in demand.
Energy efficiency rules affect obligations for some businesses (for example energy audits or energy management systems in larger organisations) and standards for buildings. For many companies this is above all a question of cost and return on investment, not just compliance.
CO₂ standards for new vehicles are reshaping manufacturers’ ranges. Companies planning to replace their fleets should factor this into purchasing and leasing decisions and their total cost of ownership.
Even a business not directly subject to ETS or CBAM may feel the change through raw material prices, counterparties’ requests for emissions data and contract clauses that shift regulatory risk.
The biggest risk for business remains acting at the last minute. A short checklist to start with:
The debate on the shape of EU climate policy will continue — and rightly so, because the details matter. Businesses should not, however, make their decisions dependent on its outcome. The CJEU rulings have confirmed the legal framework within which they must operate.
Companies that organise their data, assess their exposure and plan investments early will gain time and room for manoeuvre. Those that wait may be forced into rapid and costly decisions under deadline pressure.
At Zwyrtek Group we combine regulatory, tax and business perspectives. We help companies:
Want to check which mechanisms apply to your business? Get in touch.
Polish version: Fit for 55 po wyrokach TSUE.
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