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Key Insight
MiCA became fully effective in 2024: Title III (ARTs — multi-asset stablecoins) June 30, 2024. Title IV (EMTs — single-currency stablecoins like USDC) June 30, 2024. Title V (CASPs — exchanges, custodians, advisors) December 30, 2024. USDC (via Circle's EU entity) is MiCA-compliant. USDT faces uncertainty. DeFi protocols are carved out if 'fully decentralized' — but frontend operators may be caught. CASP registration required in one EU member state for exchanges/custodians serving EU users.
MiCA Structure
Title III: Asset-Referenced Tokens (ARTs) — tokens referencing multiple assets (baskets of currencies, commodities). Requires authorization from EU competent authority. Reserve requirements, investor protection rules, capital requirements.
Title IV: E-Money Tokens (EMTs) — stablecoins referencing a single fiat currency (like USDC, USDT). Must be issued by authorized electronic money institution (EMI) or credit institution under EU law. Significant for: USDC (Circle has EU entity), USDT (Tether facing EU compliance scrutiny).
Title V: Crypto Asset Service Providers (CASPs) — exchanges, custodians, advisors. Required to register in at least one EU member state. Passporting to other EU states once registered.
Impact on US Builders Targeting EU
Stablecoins: USDC (via Circle's EU entity) is MiCA-compliant for EU use. USDT faces uncertainty — Tether has not obtained EMI authorization. DeFi protocols integrating USDT may need to restrict EU users.
DeFi protocols: MiCA explicitly carves out 'fully decentralized' protocols — if there is 'no crypto-asset issuer' and the protocol is truly permissionless, MiCA does not apply. However, frontend operators and 'asset service providers' built on DeFi protocols may be caught.
Exchanges and custodians: If you operate a centralized exchange or custody service for EU users: CASP registration required in one EU member state (typically Ireland, France, Germany, or Malta are most crypto-friendly).
Builder Action Items
For US-based protocols targeting EU users: obtain legal opinion on whether your specific protocol falls under MiCA's carve-out for decentralized protocols. For stablecoin-integrated protocols: ensure you have MiCA-compliant stablecoin options (USDC, EUR Coin) available as alternatives.