A Commission Staff Working Document published on 16 July 2026 concludes that the Polluter Pays Principle (PPP) is applied inconsistently across EU environmental policies, with significant gaps in implementation affecting all 27 Member States and stakeholders in industry, agriculture, transport, and energy sectors. The Fitness Check, which covers 76 pieces of legislation and EU funds over the evaluation period 2014-2023, finds that while the PPP is a Treaty-based principle under Article 191(2) TFEU requiring polluters to pay for prevention, control, and remedy of pollution plus costs imposed on society, its practical application varies widely.
The assessment builds on a 2021 European Court of Auditors Special Report that found PPP application "incomplete" across environmental policies. The Fitness Check examines only who pays, not whether policy ambition levels are correct, and groups policies under the 8th Environment Action Programme priorities: climate neutrality by 2050, circular economy, zero pollution, biodiversity, and reducing production/consumption pressures. Member States are responsible for national implementation, while EU competence for taxes is limited. The document notes that environmentally harmful subsidies may be justified by social or economic objectives, but the Do-No-Significant-Harm principle, applied since 2020, helps avoid such subsidies in EU funding.
The Commission now assesses how to improve implementation based on the Fitness Check's findings. The inconsistent application creates uneven burdens across sectors and Member States, potentially distorting competition and undermining environmental goals. For industry, especially in manufacturing and energy, inconsistent enforcement may lead to competitive disadvantages for those in stricter jurisdictions. For agriculture and transport sectors, varying application of PPP can result in different cost structures. Environmental NGOs may view the findings as evidence that stronger EU-level enforcement is needed. The Fitness Check does not propose specific legislative changes but serves as a basis for future policy development, with the Commission expected to consider next steps in the context of the European Green Deal and the 8th Environment Action Programme.