Ruiz Zambrano v Office national de l'emploi Case C-34/09 [2011] ECR I-1177

Gerardo Ruiz Zambrano and his wife were Colombian nationals living in Belgium after unsuccessful asylum applications. Two of their children were born in Belgium and acquired Belgian nationality, making them Union citizens. The children had never exercised free-movement rights and were dependent on their parents. Mr Ruiz Zambrano worked for periods without a work permit and later sought unemployment benefit. Belgian authorities refused him a right of residence, a work permit and the benefit. He argued that forcing the children's primary carer to leave, or preventing him from supporting the family through work, would in practice require the Belgian children to leave the European Union. A Belgian court referred questions about Articles 20 and 21 TFEU.

Does Article 20 TFEU prevent a Member State from refusing residence and work rights to the non-EU primary carer of dependent child citizens who have never moved within the Union?

The Grand Chamber held that Article 20 TFEU precluded the refusals insofar as they would deprive the children of the genuine enjoyment of the substance of their Union citizenship rights. If both parents lacked a right to remain and the means to work, the dependent Belgian children would in practice have to leave the territory of the Union with them. A derived right of residence and access to employment was therefore necessary to protect the children's effective citizenship. The result did not depend on prior movement between Member States, so Directive 2004/38 was not the source of the right. The national court had to determine the consequences for the benefit claim under the applicable rules.

Article 20 TFEU prohibits national measures whose practical effect would compel a dependent Union citizen to leave the territory of the Union, thereby denying the genuine enjoyment of the substance of citizenship rights. A necessary derived residence and work right may therefore arise for a non-EU primary carer.

The case created an exceptional route based directly on citizenship for situations lacking the usual cross-border element. It is not a general right for every third-country relative of an EU citizen. Later judgments, including Dereci and Chavez-Vilchez, emphasise the demanding test of practical compulsion and the need to examine genuine dependency, caregiving and the child's best interests. For UK study, the decision remains important to the development of EU citizenship, although domestic reliance after Brexit depends on the applicable withdrawal and immigration arrangements.