
The GENIUS Act rule bans unregistered offshore stablecoins from July 2028 and puts due diligence on exchanges. Criminal liability reaches market makers and white-label partners.
The U.S. Treasury Department proposed rules on Monday that define how foreign stablecoin issuers can reach American users and what duty exchanges have to check them. The plan implements section 3 of the GENIUS Act, the provision that decides who may issue a payment stablecoin in the United States and when a platform may offer one built abroad.
The proposal adds a new part 1523 to Treasury's regulations and turns on two dates. From Jan. 18, 2027 – the law's expected effective date – issuing a payment stablecoin in the U.S. is unlawful unless the issuer holds a federal or state license. Foreign issuers may qualify if their home country's stablecoin regime is comparable and they register with the Office of the Comptroller of the Currency. From July 18, 2028, digital asset service providers may not offer a stablecoin to a person in the U.S. unless a licensed domestic or qualifying foreign issuer created it.
The requirement that bites first, on the effective date, is the foreign-issuer test. A platform cannot list an offshore issuer's token unless that issuer can and will comply with any lawful order under the Act. Treasury said reading that literally would block every such listing. Its fix is that a platform may rely on the issuer's representation, but only after "reasonable due diligence" that must confirm no trading ban is in force against that issuer, weigh whatever else is available, and stop where the platform has reason to doubt the issuer's word.
Treasury declined to model the rule on securities law, arguing that traditional investment rules "may frustrate" what payment stablecoins do. It proposed a conduct test for offshore issuance: an issuer outside the U.S. is treated as not having issued here if it reasonably believes its buyers are abroad, keeps controls that "must not only be adopted on paper, but actually implemented," and does no marketing aimed at U.S. persons.
Criminal exposure reaches past the issuer. Acting as a market maker for a newly issued unlawful stablecoin, supplying a brand in a white-label deal, or coordinating minting or customer solicitation could each count as participating in an unlawful issuance. Knowing participation carries a fine of up to $1 million for each violation, five years in prison, or both.
One softer path did not survive. Treasury weighed a longer runway, illustrated as "36 months," alongside a carve-out for offshore tokens below a de minimis size of "less than $1 billion in U.S.-held capitalization." It set the idea aside because the delayed consumer protection would cost more than the eased transition saved. Circle had urged Treasury to apply identical requirements regardless of issuer type, an argument live since Congress passed the law last year.
The department posed 87 questions and set a 60-day comment window from Tuesday's publication. Treasury Secretary Scott Bessent said the department wants to "provide the regulatory certainty businesses need to innovate and grow in America, cement the role of the U.S. dollar as the world's reserve currency, and keep America the crypto capital of the world."
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