The EU's cryptocurrency regulations, set to fully take effect on December 30, 2024, introduce varying grandfathering periods for member states, with some allowing up to 18 months. Tether's USDt stablecoin faces uncertainty regarding its compliance, as exchanges like Coinbase have delisted it, while others await regulatory clarity. The transitional phase will last until July 2026, during which existing crypto services may continue under national laws, potentially leading to inconsistent consumer protections across the EU.