The European Central Bank (ECB) is advancing the offline payment chip card scheme for the EU digital euro wallet. The Eurosystem is developing secure, cash-like offline transactions using chip cards, including battery-powered and non-powered smart cards with bridge devices. Testing focuses on seamless, secure funding and defunding processes, with anti-money laundering checks. The ECB is exploring integration with smartphone secure elements, though challenges remain due to reliance on manufacturers like Apple for NFC access. Prototypes are being refined to ensure privacy, with transaction details known only to payer and payee. The Rulebook Development Group is drafting standards, with ongoing stakeholder engagement to finalize the scheme by 2026.