Viking and Laval (2007): Collective Action, Posted Workers, and Economic Freedoms

The Viking and Laval judgments, delivered by the Grand Chamber of the CJEU on 11 December 2007, represent the most significant engagement by the Court with the relationship between the economic freedoms of the internal market and the fundamental right to take collective action, including the right to strike. The two cases addressed the application of EU economic freedoms to collective labour action and the interpretation of the Posted Workers Directive (Directive 96/71/EC). The judgments provoked extensive debate about the balance between market integration and social rights in the EU legal order.

Viking: The Facts

International Transport Workers’ Federation v Viking Line (Case C-438/05) concerned a Finnish shipping company, Viking Line, which operated a ferry between Helsinki and Tallinn under the Finnish flag. Viking Line wished to reflag the vessel under the Estonian flag to take advantage of lower Estonian wages and employment costs. The International Transport Workers’ Federation (ITF), a global federation of transport workers’ unions, had a policy of opposing flags of convenience and called on its affiliates to take solidarity action against Viking.

Viking Line brought proceedings before the English courts, seeking an injunction to prevent the ITF and the Finnish Seamen’s Union from taking collective action to prevent the reflagging. The English Court of Appeal referred questions to the CJEU on whether the collective action violated Viking’s right of freedom of establishment under Article 43 EC (now Article 49 TFEU).

Laval: The Facts

Laval un Partneri Ltd v Svenska Byggnadsarbetareförbundet (Case C-341/05) concerned a Latvian construction company, Laval, which posted Latvian workers to Sweden to work on a construction site. Under the Posted Workers Directive, Laval was required to comply with Swedish minimum employment conditions. However, Swedish law did not provide for the extension of collective agreements erga omnes; instead, conditions were established through collective bargaining at the workplace level.

The Swedish construction workers’ union, Byggnads, demanded that Laval sign a collective agreement with terms that exceeded the statutory minimum, including higher wages, insurance contributions, and other conditions. When Laval refused, the union initiated a blockade of the construction site, preventing Laval from carrying out its work. Laval brought proceedings, arguing that the collective action violated its freedom to provide services under Article 49 EC (now Article 56 TFEU).

The CJEU’s Reasoning in Viking

The CJEU held that the collective action initiated by the ITF and the Finnish Seamen’s Union constituted a restriction on Viking’s freedom of establishment. The Court stated that the right to take collective action is a fundamental right recognised by EU law, as confirmed by Article 28 of the Charter of Fundamental Rights and by international instruments including the European Social Charter and ILO conventions. However, the exercise of this fundamental right must be reconciled with the requirements of the Treaty’s economic freedoms.

The Court held that the restriction on freedom of establishment could be justified by an overriding reason of public interest — in this case, the protection of workers’ rights. However, the restriction must be proportionate: it must be suitable to achieve the legitimate objective and must not go beyond what is necessary to achieve that objective. The Court provided guidance on proportionality: the collective action must be intended to protect workers from unfair competition and social dumping, not merely to protect the jobs of union members at the expense of workers in other Member States. The national court was to assess whether the blockade was proportionate.

The CJEU’s Reasoning in Laval

The CJEU held that the collective action by the Swedish unions violated Laval’s freedom to provide services. The Court interpreted the Posted Workers Directive (Directive 96/71/EC) as establishing a hard core of minimum employment conditions that posting undertakings must respect. Beyond this hard core, Member States could not impose additional conditions unless they fell within the scope of the directive or were justified by public policy provisions under Article 3(10) of the directive.

The Court held that the Swedish system of extending collective agreements through industrial action, without legislative framework specifying the conditions to be applied, was not compatible with the directive’s requirements. The posting undertaking could not be required to comply with collective agreement terms that were not binding on all undertakings in the sector and that went beyond the minimum protection provided by the directive. The collective action to impose such terms constituted a disproportionate restriction on the freedom to provide services.

The Proportionality Analysis

Both cases applied a proportionality analysis to collective action. In Viking, the Court held that collective action may be justified to protect workers’ rights, but the proportionality of the action must be assessed: was the action suitable to protect workers, and were less restrictive alternatives available? The national court was to consider whether Viking had given binding commitments to respect workers’ rights and whether the collective action was necessary to prevent social dumping.

In Laval, the proportionality analysis was stricter. The Swedish unions had not exhausted less restrictive alternatives, such as engaging in negotiation or seeking legislative action. The demands for conditions beyond the directive’s minimum were not justified by the objective of protecting workers, as the directive already provided a floor of protection. The collective action was therefore disproportionate and could not be justified.

The Reaction and Debate

The Viking and Laval judgments generated intense debate. Trade unions and labour law scholars criticised the judgments for subordinating fundamental social rights to economic freedoms, arguing that the Court had undermined the right to strike and the autonomy of national industrial relations systems. The judgments were seen as privileging market integration over social protection and as restricting the capacity of trade unions to defend working conditions against downward pressure from low-wage Member States.

Employers and market integration advocates welcomed the judgments as establishing that collective action is not exempt from EU law and that economic freedoms must be respected by trade unions. The judgments clarified the limits of collective action in the context of the internal market and provided legal certainty for undertakings exercising their right of establishment and freedom to provide services.

The legislative response was the Posted Workers Enforcement Directive (2014/67/EU), which strengthened the implementation of the Posted Workers Directive and improved cooperation between national authorities. The Revised Posted Workers Directive (2018/957/EU) further amended the framework, extending the application of certain host state conditions to posted workers and strengthening the principle of equal treatment. The political process addressed some of the concerns raised by Laval, though the fundamental tension between market freedoms and social rights remains unresolved.

The Legacy of Viking and Laval

Viking and Laval are the most significant CJEU rulings on the relationship between economic freedoms and social rights. They established that collective action is subject to EU economic freedoms and that national industrial relations systems must respect Treaty provisions. The cases have shaped the development of EU social policy, labour law, and internal market law, and have been the subject of extensive academic commentary and political debate.

The judgments affirm that the right to take collective action is a fundamental right protected by EU law, but that its exercise must be balanced against the economic freedoms of the Treaty. The balance is to be struck through the proportionality principle, with national courts assessing the necessity and suitability of collective action in each case. The Viking and Laval framework remains the governing legal standard for the application of EU economic freedoms to collective labour action.