Portugal joins EU cross‑border testing network for autonomous vehicles

On 29 September 2026, the Portuguese government officially announced its accession to the European network of cross‑border corridors for autonomous vehicle testing, as reported on the Pplware portal. The decision places Portugal alongside Slovakia and Norway, which also joined at the same time, raising the list of signatory countries to 22. The initiative, launched by the European Commission, aims to facilitate trials that cross national borders and accelerate the validation of automated driving technologies. The announcement underscores Lisbon’s commitment to supporting the transition to intelligent mobility within the European regulatory framework.

Official accession

The accession was communicated by the Ministry of Infrastructure and Housing, which highlighted the strategic importance of participating in the European project. According to the Pplware report, the signing was carried out together with representatives from Slovakia and Norway, reinforcing the multilateral dimension of the initiative. The official statement emphasized that integration into the network will enable Portuguese companies and research centres to access test routes recognised at the European level, facilitating data exchange and collaboration with partners from other Member States.

How the corridor network works

The European cross‑border corridor network aims to bring together the technical and safety rules applicable to autonomous vehicles, creating a common framework that can be used for trials crossing borders. By establishing harmonised standards, the initiative seeks to reduce regulatory fragmentation that has so far hampered testing across multiple countries. In this way, operators can plan validation routes that include, for example, national roads and motorways linking two or more nations, under coordinated supervision by the competent authorities.

The proposal received formal backing from EU transport ministers on 8 June 2026, when the European Commission announced that the initiative already had 19 signatory countries. The subsequent accession of Portugal, Slovakia and Norway raised that number to 22, strengthening geographic representation and the diversity of available test environments. The Commission’s statement highlighted that the network’s expansion demonstrates a growing political will to create testing infrastructures that meet safety and interoperability requirements at the continental level.

Limitations and requirements

Participation in the network does not confer immediate authorization for commercial operation of autonomous vehicles in Portugal. The agreement makes clear that trials conducted in the corridors remain confined to controlled environments, with human operators or remote supervision systems present, in line with safety standards agreed among Member States. Each test route must be pre‑approved by the competent national authorities, which assess the level of automation, emergency protocols and compliance with data‑protection requirements.

In addition to national approval, test projects must follow a validation process that includes gathering performance data, conducting risk assessments and submitting technical reports to the European monitoring platform. This procedure ensures that results obtained in Portugal can be compared and recognised by other network countries, facilitating knowledge transfer and the eventual harmonisation of operating licences at EU level.

Concrete impacts for Portugal

With its accession, Portugal can now define test routes that connect, for example, the industrial zone of Greater Porto to transport infrastructure in neighboring Spain, allowing autonomous vehicles to be evaluated under real international traffic conditions. The government announced it will involve universities, research centres and automotive companies in preparing the trials, creating opportunities for European funding and the development of advanced technical skills.

In the coming months, Portuguese authorities will publish a set of national guidelines translating the European standards into the local context, as well as identify the physical corridors to be incorporated into the network. This action will change how tests are planned: instead of isolated projects, operators will be able to submit joint applications that leverage the cross‑border infrastructure, reducing costs and speeding up the validation phase required before applying for commercial licences. In short, the accession positions Portugal prominently in the European autonomous‑mobility landscape.