The U.S. Treasury Department has issued a proposed rule implementing the GENIUS Act, the federal statute governing payment stablecoins, moving the landmark legislation from statute books into operational regulation.

The proposal, reported by CoinDesk, begins the formal rulemaking phase that will determine how stablecoin issuers, custodians and intermediaries comply with the law's reserve, disclosure and supervision requirements. The Treasury notice now heads into a public comment window before finalization.

What does the proposed rule cover?

The GENIUS Act established a federal licensing and oversight regime for payment stablecoins, setting standards for reserve backing, redemption practices and permitted activities. The Treasury's implementing rule translates those statutory mandates into specific compliance obligations for market participants.

Key areas in scope for issuers and service providers include:

• Reserve composition and attestation requirements tied to permitted high-quality liquid assets
• Redemption and disclosure obligations toward stablecoin holders
• Supervisory and reporting duties for entities seeking or operating under federal approval

Treasury is soliciting industry feedback on the draft text, a standard step that allows exchanges, issuers, banks and custody providers to flag operational concerns before the rule takes final form.

Why does implementation matter for issuers?

For stablecoin operators, the proposed rule represents the point where statutory language converts into binding compliance procedure. Firms that previously operated under state regimes or in regulatory ambiguity must now map their reserve management, audit cadence and reporting infrastructure against federal standards.

The rulemaking also carries competitive consequences. Entities able to meet the federal framework early gain access to a uniform national standard, while smaller issuers face compliance costs that could accelerate consolidation across the sector. Banking partners and custodians will need to adjust onboarding and monitoring workflows to reflect the new requirements.

What happens next?

The proposal will proceed through public comment and agency review before a final rule is adopted. Market participants tracking the process should watch for the comment deadline, which will set the timeline for when the GENIUS Act's enforcement architecture becomes fully operational for the U.S. stablecoin market.