The GENIUS Act has spent a year as a statute in search of a rulebook. Treasury has now published the first major implementing proposal, and it is broader than the industry's optimistic reading assumed. The document does the unglamorous work of definitions: what a payment stablecoin is, who counts as an issuer, and where US jurisdiction begins and ends.
The compliance net widens
The most consequential move is that obligations do not stop at the issuer. Exchanges, wallet providers and other intermediaries would be expected to carry out reasonable due diligence on the foreign issuers whose tokens they list, and could be exposed for facilitating unlawful issuance. That converts listing decisions into compliance decisions, with a paper trail to match.
A date on the calendar
The proposal contemplates a point, reported as July 2028, after which US providers could not offer non-compliant offshore payment stablecoins to American customers. Tokens would still circulate abroad and in self-custody, but the practical effect on domestic venues would be a narrower shelf of options.
Comments run into October, so the detail will move. The direction will not: the statute was always going to end with a registered tier and an unregistered one, and this is the line being drawn between them.
What it means for the market
Issuers with US bank partners, audited reserves and published attestations gain a durable moat. Issuers running on offshore incorporation and quarterly assurance letters face a choice between registering and accepting a smaller addressable market. Traders should expect the compliant-token share of on-chain settlement volume to keep climbing regardless of which way individual issuers jump.
There is a fair objection that pushing diligence onto intermediaries makes them de facto regulators of assets they did not create. That is a real cost. It is also the cheapest available mechanism for a regulator with no jurisdiction over a foreign issuer, and on balance a rulebook with awkward edges beats another two years of ambiguity.
