The European Central Bank (ECB) has taken another step toward the realization of a digital euro, announcing the formation of specialized workstreams to establish technical and operational rules for the proposed currency. The move comes as European policymakers increasingly view a central bank digital currency ( CBDC), as a vital tool to preserve Europe’s monetary sovereignty and provide a homegrown alternative to the dominance of U.S. dollar-denominated stablecoins.

Through the Rulebook Development Group, established in January 2023 to draft the digital euro’s functional framework, the ECB unveiled two new workstreams: G5 and B1.

The G5 workstream is tasked with developing technical requirements for how a digital euro will interact with physical infrastructure. Its focus includes defining how payments are initiated at terminals via near-field communication (NFC) or QR codes, as well as integrating offline digital euro functionality into existing point-of-sale and ATM networks. The group is also set to explore so-called “softPOS” and mobile payment acceptance solutions.

The B1 workstream will design the “testing ecosystem” required to ensure all digital euro services meet strict security and performance standards. Members are charged with creating the rules for certifying end-user devices and payment service providers before they can access the digital euro network.

While the technical documents focus on implementation, the underlying motivation for the project is increasingly geopolitical. The ECB has expressed concern that without a digital euro, the European payments landscape could become overly dependent on foreign digital assets. ECB President Christine Lagarde has consistently framed the digital euro as a strategic necessity to protect Europe’s monetary sovereignty against the influence of foreign assets, particularly U.S. dollar-denominated stablecoins.

The ECB’s goal is to ensure European citizens have access to a digital form of cash backed by the central bank, rather than relying on private entities whose primary interests may not align with European financial stability.

The ECB is emphasizing a collaborative approach, calling for private-sector experts to join these workstreams alongside Eurosystem representatives. Guiding principles for both groups state that while the digital euro must function as a standalone basic service, it must also be “attractive to all actors” and allow the private sector to build innovative services on top of it.

“Candidates should be inspired by the opportunity to shape the digital euro scheme’s rulebook,” the mandates state, noting that all intellectual property resulting from this work will reside with the ECB.

As these workstreams begin their development “sprints,” the vision of a digital currency that can be used at any European ATM or checkout counter moves closer to reality.

• What are the new workstreams established by the ECB for the digital euro? The ECB has launched the G5 and B1 workstreams to define the technical framework and certification standards for the digital euro.
• What is the focus of the G5 workstream? The G5 workstream is developing technical requirements for the digital euro’s interaction with physical infrastructure, including payment terminals and mobile solutions.
• What is the role of the B1 workstream? The B1 workstream is responsible for creating a testing ecosystem to ensure all digital euro services meet security and performance standards.
• Why is the digital euro considered a geopolitical necessity? The ECB views the digital euro as essential for maintaining Europe’s monetary sovereignty and providing an alternative to U.S. dollar-denominated stablecoins.

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