Treasury built a state stablecoin lane. Its users filed to go federal.

Treasury's rules let stablecoin issuers under $10B pick a state regulator. The four coins that fit total $12.9B, and their backers filed to go federal.

The Editors · Crypto · 8 min read · Oct 4, 2026

By the numbers

$10Bthe most an issuer can have outstanding and stay under a state regulator

$12.9Bfour dollar coins under that line, combined

4.1%their share of a $314B dollar-stablecoin market

30 daysfor Treasury, the Fed and the FDIC to rule on a state, unanimously

Jan 18, 2028the deadline for a state to file, and a conditional filing counts

Treasury published the rules for the GENIUS Act's state lane on September 30, 2026. The lane lets a stablecoin issuer with no more than $10 billion outstanding answer to a state regulator instead of a federal one, once a committee of Treasury, the Fed and the FDIC approves that state's rules.

Here's the problem with the timing. Four fiat-backed dollar coins with a US issuer or custodian sit under the line today: USD1, USDG, PYUSD and RLUSD, worth $12.9 billion together on October 5, 2026, or 4.1% of a $314 billion market. The three companies that issue or hold the reserves for them, Paxos, BitGo and Ripple, all won conditional approval for national trust bank charters from the OCC on December 12, 2025. The state lane is opening after its most obvious users applied for the federal one.

What Treasury published on September 30

The document is an interim final rule, docket TREAS-DO-2026-0562, issued on behalf of the Stablecoin Certification Review Committee. It's procedure: how a state applies and how the committee answers. What a state's rules must contain sits in the separate "substantial similarity" proposal from April, still a proposal.

The mechanics, all from the Federal Register text:

The filing: a signed attestation from the state's top stablecoin official, a narrative showing how the state meets each federal criterion, and the statutes, regulations and binding guidance behind it.
The decision: the committee approves or denies within 30 days of a filing. Approval of an initial certification takes a unanimous vote.
A denial: the state gets at least 180 days to fix its rules and file again, with an appeal route.
Every year after: a recertification, due on the anniversary of approval. Miss it and the approval is suspended.
The fast track: states that had a prudential regime for digital assets or stablecoins in force by January 14, 2026 can ask for expedited processing.

One catch sits in the dates line. The rule took effect on publication, but Treasury won't accept certifications until the forms clear Paperwork Reduction Act review. Comments on that close October 30, 2026. Comments on the rule itself close November 30.

The deadline that isn't a wall

The statute gives a state one year after the Act takes effect to file. Treasury expects the effective date to be January 18, 2027, so the deadline is January 18, 2028.

Treasury then softened it. Any filing by that date satisfies the statute, the rule says, "even if the certification is conditional on additional planned State legislative or regulatory work or would otherwise be considered incomplete." The form has a check box for exactly that.

This answers a June 16, 2026 letter from seven senators, led by Cynthia Lummis, who warned that a hard cutoff would "likely foreclose future State participation" because some legislatures meet only every other year. For a state, the practical reading is simple: file something by January 2028 and keep your place.

Who the $10 billion line actually covers

Sort the dollar stablecoins by size and the line looks generous. Only two coins sit above it: Tether's USDT at $184.1 billion and Circle's USDC at $74.2 billion. Everything else is under $7 billion.

Most of what's under the line isn't a payment stablecoin in the Act's sense, though. The Act excludes securities, which takes out tokenized funds such as BlackRock's BUIDL ($2.2 billion) and Circle's USYC ($2.4 billion). Sky's USDS, Dai and Ethena's USDe are crypto-backed or synthetic dollars with no state-chartered company standing behind a redemption promise. Strip those out and four coins remain.

$4.44B$3.09B$2.89B$2.5B

View as table

The dollar coins under the $10B state-lane cap
label	The dollar coins under the $10B state-lane cap
USD1 (World Liberty, BitGo custody)	$4.44B
USDG (Paxos)	$3.09B
PYUSD (Paxos)	$2.89B
RLUSD (Ripple)	$2.5B

Source: DefiLlama circulating supply, October 5, 2026

Now check where their backers stand. Paxos, which issues PYUSD and USDG, applied to convert its New York trust company into a national one. BitGo, the South Dakota trust that holds USD1's reserves, filed the same conversion. Ripple applied for a new national trust bank. The OCC gave all three conditional approval on December 12, 2025, alongside Circle and Fidelity Digital Assets.

That's our read, and it's the point of this piece: the companies best placed to use a state charter under $10 billion have already said, by filing, that they want a federal one. A state charter that caps you at $10 billion is a poor home for a coin that wants to grow past it. The Act forces an issuer that crosses the line onto the federal framework within 360 days. USD1 alone is at $4.4 billion, 44% of the cap. For a coin growing like that, a state license is a stopover.

What the state lane is still for

The lane still serves three kinds of issuer.

New and small issuers. A regional bank, a fintech or a payments company launching a coin in 2027 starts at zero. A state regulator it already knows may be faster and cheaper than an OCC charter.
Issuers waiting on a final federal charter. Conditional isn't final. As of August 2026, only Circle had moved to final approval, granted July 10. Paxos and BitGo still operate under state charters while they wait.
States that want the business. Treasury's own paperwork estimate assumes all 56 eligible jurisdictions file, at 480 hours each for the first certification and 40 hours a year after. That's an upper bound for the form's cost, written to be conservative, and it says nothing about how many states will actually file.

The cost of not certifying is stated plainly in the rule. If a state can't win approval, Treasury expects its stablecoin issuers to either stop issuing or get a federal license. From July 18, 2028, selling an unlicensed stablecoin to people in the US becomes unlawful for exchanges and other service providers.

The case against this read

Two things could prove it wrong.

First, conditional approvals can stall. If the OCC slows down, or a new administration after the 2028 election turns hostile to crypto charters, a state license under a certified regime becomes the safer place to wait. Paxos and BitGo haven't given up their state charters, and nothing stops a firm from keeping both options open.

Second, the committee's vote has to be unanimous, and the Fed and FDIC seats can change. A state regime approved in 2027 survives as long as it recertifies and doesn't change materially. That makes an approved state license sticky in a way a pending federal charter isn't.

What to watch next

The Treasury notice that certifications are open. It follows PRA approval, so expect it after the October 30 comment date.
The first filings. New York, home to Paxos's existing trust charter, has the most to lose if its issuers leave.
Final OCC approvals for Paxos, BitGo and Ripple. Each one moves a coin out of the state lane's natural pool.
The substantial-similarity rule from April. Until it's final, a state knows how to file but not exactly what it's being measured against. Size already shapes the federal side too, as we found when the Fed priced a stablecoin dollar.

For a stablecoin holder, nothing changes this month. For anyone choosing where to launch a coin, the choice is now concrete: a state with a 30-day federal sign-off and a $10 billion ceiling, or an OCC charter with no ceiling and a longer queue.