US Treasury will publish a major proposed rulemaking implementing the GENIUS Act on Monday morning, Punchbowl reports, citing sources

• Will cover licensing requirements for individual stablecoin issuers.
• The proposed rule will also outline when payment stablecoins can be offered or sold in the US.

A notice of proposed rulemaking is the opening step in a long process: publication, a public comment window typically running weeks to months, agency review, and only then a final rule, so the binding regime sits well downstream. The precedent from comparable financial rulemakings is that the market-moving content is in the definitional detail rather than the headline scope, here chiefly how licensing standards divide between bank and nonbank issuers, what reserve and redemption requirements look like, and how the text treats the payment stablecoin perimeter and any limits on yield-like features. That carve-out line has historically been where bank and crypto lobbies concentrate comment pressure, and where drafts shift most between proposal and final. The listed bodies, comment letters from the large incumbent issuers and banking trade groups, and any coordination with banking regulators issuing parallel rules are the usual tells. First-order sensitivity tends to concentrate in the crypto complex and in listed names tied to stablecoin issuance, with a secondary read-through to short-dated Treasury demand given that reserve composition rules shape a large and growing buyer base of bills. As a sourced pre-publication report, the immediate follow-on is the actual text and whether Monday's document matches the scope described.