The token settles the same way regardless of jurisdiction. The legal wrapper around it does not. By 2026 a USD- or EUR-denominated stablecoin is no longer a gray-area instrument in either of its two largest markets. The EU has a live rulebook, the US has a signed statute, and both decide who is allowed to be the issuer before anyone touches the smart contract.
If you are scoping a stablecoin product, the wrapper is the first constraint, not the last. It determines your license, your reserve composition, your redemption obligations, and whether you can pass yield to holders. We covered reserves and redepegs mechanically in an earlier module. This one is about the law that forces those mechanics into a specific shape.
The EU: MiCA splits stablecoins into two buckets
The Markets in Crypto-Assets Regulation (MiCA) has applied to stablecoins since June 30, 2024. It does not have a single "stablecoin" category. It has two, and which one you land in changes your supervisor and your permitted issuer type.
EMTs: single-currency tokens
An e-money token (EMT) references one official currency. A EUR- or USD-pegged stablecoin is an EMT. Under MiCA, only a credit institution (a bank) or an authorized electronic money institution (EMI) may issue one. That is the e-money licensing thread running straight through the regulation.
Two operational rules matter most. Holders must be able to redeem at par, at any time, in the reference currency. And the issuer is prohibited from paying interest to holders. If your product thesis depends on passing reserve yield to users, MiCA closes that door for EMTs at the statutory level.
ARTs: basket and multi-asset tokens
An asset-referenced token (ART) references multiple currencies, commodities, other crypto-assets, or some combination. A token pegged to a EUR-plus-USD basket is an ART. ART issuers can be a wider set of EU-established legal persons, not just banks and EMIs, but the reserve regime is heavier. Reserves must fully back outstanding tokens, sit segregated from the issuer's own assets, and stay unencumbered. ART redemption is based on the current market value of reserve assets rather than a guaranteed fixed par.
The monetary-sovereignty cap
MiCA carries a deliberate brake on non-EU-currency tokens. Once an EMT denominated in a non-EU currency (read: USD) is designated "significant," its use as a means of exchange is capped at 1 million transactions or EUR 200 million per day. This is policy, not an accident of drafting. It is aimed at limiting how far a dollar stablecoin can penetrate euro-area payments. If your plan is a USD stablecoin scaling as everyday EU payment rails, model that ceiling in from the start.
A transitional window let some pre-existing actors keep operating, but it ends July 1, 2026. After that, no authorization means no lawful issuance.
The US: GENIUS sets a federal floor
President Trump signed the GENIUS Act into law on July 18, 2025, after the Senate passed it 68-30 and the House 308-122. It is the first federal framework for payment stablecoins in the US, and it is structurally narrower than MiCA: it governs payment stablecoins specifically, not the whole crypto-asset surface.
Who is allowed to issue
Issuance is restricted to a "permitted payment stablecoin issuer" (PPSI). That is a federally qualified issuer approved by the OCC (including nonbank entities and uninsured national banks), a subsidiary of an insured depository institution, or a state-qualified issuer operating under an approved state regime.
The reserve rule is strict and specific. One-to-one backing in cash, demand deposits, short-dated Treasuries, certain overnight repo and reverse repo, certain money market funds, or tokenized versions of those. Issuers must publish the reserve composition monthly. Like MiCA, GENIUS prohibits paying interest or yield to holders, with a rebuttable presumption that affiliate and third-party reward arrangements violate that ban. The intent is to stop issuers competing on yield and to keep banks and nonbanks on a level field.
One consumer protection stands out: in an issuer insolvency, stablecoin holders' claims are prioritized over all other creditors.
The $10 billion line
This is the structural detail most teams miss. A state-qualified nonbank issuer can stay under its state regulator only while outstanding issuance is below $10 billion, and only if that state regime is certified "substantially similar" to the federal one. Cross $10 billion and you have 360 days to move under the OCC's framework or stop issuing new stablecoins until you fall back below the line.
When it actually bites
GENIUS takes effect on the earlier of January 18, 2027 (18 months after enactment) or 120 days after the primary regulators finalize implementing rules. The rulemaking is already in motion: the OCC issued proposed regulations in early 2026, and the FDIC has proposed application procedures for the institutions it supervises. The statute exists, but the operative detail is still settling in the rules.
A worked example: one product, two wrappers
Say you want to launch a USD-denominated payment stablecoin and serve both EU and US users from day one. Walk the two wrappers and the build splits cleanly.
For the EU leg, your USD token is an EMT. You need a bank or an authorized EMI as the issuing entity, par redemption on demand, and zero interest to holders. You also model the significant-EMT transaction cap, because a non-EU-currency token is exactly what that ceiling targets.
For the US leg, you need PPSI status. At launch you might sit under a certified state regime, but you plan the OCC transition before you cross $10 billion outstanding, because 360 days is not long to stand up a federal charter mid-growth. Reserves go into cash and short-dated Treasuries with monthly public attestation, and again, no yield to holders.
The reserve asset mix and the no-yield rule rhyme across both regimes. The issuer entity and the supervisor do not. You are likely standing up two distinct legal vehicles, not one product with a checkbox.
The takeaway
Both regimes converge on the same core: full backing, on-demand redemption, no yield to holders, a real regulated entity as the issuer. They diverge on who that entity is and which currencies the law wants to protect. MiCA routes single-currency tokens through bank or EMI e-money licensing and caps foreign-currency reach. GENIUS builds a federal-plus-state structure with a $10 billion trigger that quietly forces scale into federal oversight.
Pick your wrapper before you write a line of contract code. The token settles either way. The license is what lets you ship it.