The European MiCA regulation was born from a simple observation made by the European Commission as early as 2019-2020:

• Legal Fragmentation: Each EU country was beginning to create its own rules (such as the PSAN status in France), which complicated life for companies wishing to operate throughout Europe.

• Fear: Facebook's announcement of creating its own currency caused a shockwave. The EU realized that without rules, private actors could threaten the monetary sovereignty of States.

• Scandals and Volatility: Resounding bankruptcies (such as FTX, which occurred during the negotiations) confirmed the urgent need to protect investors.

MiCA abandons the generic term "stablecoin" to introduce a fundamental binary distinction with heavy legal consequences: E-Money Tokens (EMT) and Asset-Referenced Tokens (ART).

1. E-Money Tokens (EMT)

The EMT is defined as a crypto-asset that aims to maintain a stable value by referencing the value of a single official currency (fiat currency), such as the Euro or the US Dollar.

• Legal Nature: The EMT is an electronic substitute for cash. It falls directly in line with electronic money as defined by Directive 2009/110/EC. Legally, it materializes a claim held by the holder against the issuer.

• Banking and Issuance Monopoly: EMT issuance is a reserved activity. Only duly licensed credit institutions (banks) or Electronic Money Institutions (EMIs) may issue EMTs in the European Union. This requirement de facto excludes purely technological players ("TechFin") that do not possess this heavy prudential license.

• The Right of Redemption: This is the cornerstone of consumer protection. MiCA mandates that an EMT holder must be able, at any time and without conditions, to obtain reimbursement of their tokens at face value (at par, i.e., 1 for 1) in legal tender. Any contractual clause limiting this right or imposing dissuasive fees would be deemed unwritten (null and void).

• Prudential Supervision: The European Banking Authority (EBA) is entrusted with a direct supervisory role for "significant" EMTs. The significance threshold is determined by several criteria, including a number of holders exceeding 10 million, a value of issued tokens or market capitalization exceeding 5 billion euros, or a high daily transaction volume. This centralization of supervision at the European level aims to avoid regulatory arbitrage between Member States for actors having a potential systemic impact on the financial stability of the Eurozone.

 2. Asset-Referenced Tokens (ART)

If the EMT is the digital twin of a single currency, the ART is a more complex hybrid creature. It is defined as a crypto-asset that is not an electronic money token, but purports to maintain a stable value by referencing another value or right, or a combination thereof (a basket of currencies, commodities like gold, or other crypto-assets).

• Composite Structure: Unlike the EMT (1:1 parity with a currency), the value of an ART often relies on a "basket" of assets. This is where one would classify, for instance, Facebook's initial Libra/Diem project, which intended to peg its value to a basket of international currencies.

• Issuance Conditions: ART issuance is not restricted solely to banks. Any legal person established in the EU may issue ARTs, provided they obtain a specific authorization from their national competent authority (such as the AMF in France). However, the process requires the publication of a rigorously vetted white paper, detailing the risks and the functioning of the protocol.

• Reserve Management: This is the critical point to prevent a "Terra/Luna" style collapse. MiCA mandates a strict segregation between the issuer's own funds and the reserve of assets backing the tokens. This reserve must be managed prudently, composed of highly liquid and diversified assets, to withstand massive redemption requests (bank runs).

• Redemption Right: Just as with EMTs, MiCA guarantees ART holders a permanent right of redemption. If the issuer is unable to redeem, the holder has a priority claim on the reserve of assets.

• Usage Restrictions: The EU is particularly wary of ARTs being used as a widespread means of payment replacing the Euro. If an ART becomes too popular for daily transactions (exceeding certain volume thresholds), the issuer will be required to stop issuing new tokens to curb its adoption and protect monetary sovereignty.