Portugal, Slovakia and Norway have officially signed the Joint Declaration of Intent on large-scale cross-border testbeds for autonomous vehicles during Connecting Europe Days, a mobility flagship event taking place from 28 September – 1 October 2026 in Brussels, Belgium.
Spain also recently signed the petition, with the latest three countries bringing the total number of participants to 22.

These additional signatories are intended to reflect continued commitment to the acceleration of a harmonised deployment of autonomous vehicles across Europe in a safe, coordinated and competitive way, building on an initiative launched under the European Automotive Action Plan.
With an aim to support the harmonised commercial pre-deployment of autonomous vehicles across Europe by bringing together Member States, non-EU countries, regional and local authorities, industry stakeholders and transport operators; the Joint Declaration was first signed in June by 18 Member States.