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Migration and Home Affairs
  • 13 May 2025

EU law monitoring

What is an infringement procedure?

According to the EU treaties, the Commission may take legal action – an infringement procedure – against an EU Member State that implements EU law incompletely or incorrectly. The Commission may refer the issue to the Court of Justice, which can impose financial sanctions.

The Commission identifies possible infringements of EU law on the basis of its own investigations, the communication of transposition measures submitted by Member States or following complaints from citizens, businesses or other stakeholders.

You can find out more by visiting the dedicated section on Implementing EU law.

The stages of an infringement procedure

If a Member State fails to communicate measures transposing directives into their national legal order (e.g. adopting national laws fully implementing the content of a directive in the national legal order), or doesn’t rectify a violation of EU law (e.g. the breach/bad application of the EU Treaties, Regulations, Directives, Decisions etc.), the Commission may launch a formal infringement procedure. The procedure follows a number of steps laid out in the EU treaties, each ending with a formal decision:

Annual report on monitoring the application of EU law

The Commission also publishes an annual report reviewing key aspects of the application of EU law and presenting relevant implementation and enforcement actions by policy area and country.

Annual reports on monitoring the application of EU law

EU Home Affairs law infringement

DG HOME is responsible for ensuring that Member States apply EU Home Affairs law correctly. 

Infringement cases and decisions

Complaints

Anyone can file a complaint to the Commission about any measure (law, regulation or administrative action) or the absence of a measure or practice by an EU country that they consider incompatible with EU law.

Find out more about how to make a complaint or view the standard complaint form.

The Commission may decide to start infringement proceedings following the assessment of complaints submitted by citizens. In this context, in order to facilitate and improve complaints handling, the Commission services may use CHAI – a pilot tool to test ‘smart search’ and ‘smart drafting’ and 'legal analysis' functionalities using AI.”

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