Switzerland Launches EU Treaty Consultation Process

The Swiss Federal Council has taken a significant step forward in its relations with the European Union by approving the text of a new comprehensive treaty package. This milestone development, announced in June 2025, marks the beginning of a nationwide consultation process that will engage various stakeholders across Switzerland. The approved treaty represents years of careful negotiations and aims to establish a more structured framework for Swiss-EU relations.

The implementation of the treaty package requires substantial legislative modifications within Swiss law. A total of 32 federal laws will need amendments, while three entirely new laws must be created to accommodate the treaty's provisions. These changes reflect the comprehensive nature of the agreement and its far-reaching implications for Swiss domestic legislation. The consultation process will allow political parties, cantons, municipalities, and other stakeholders to review and comment on these proposed changes.

The consultation period extends until October 2025, after which the Federal Council plans to submit the comprehensive bill to parliament in the first quarter of 2026. A referendum is anticipated in 2027, particularly given the known opposition from the Swiss People's Party. In the interim, Switzerland and the EU have established transitional rules to govern their partnership from late 2024 until the package's final implementation. A significant milestone includes Switzerland's planned participation in EU research programmes, with retroactive association to Horizon Europe, Euratom, and the Digital Europe Programme from January 2025.

This treaty represents a pivotal moment in Swiss-EU relations, building upon decades of bilateral agreements. The comprehensive nature of the agreement aims to update and stabilize Switzerland's trading relationship with the EU after nearly a decade of complex negotiations. The Federal Council's planned joint declaration with the EU Commission in Brussels on June 24 will further solidify these arrangements. The treaty's implementation will significantly influence various sectors, from research collaboration to market access, marking a new chapter in Switzerland's European engagement.