Four federal agencies — the Federal Reserve, Office of the Comptroller of the Currency, Federal Deposit Insurance Corporation, and Department of the Treasury — are simultaneously writing the rulebook for a $300 billion-plus stablecoin market under the GENIUS Act, the first U.S. federal law govern...
"Stablecoins would only function reliably as payment instruments if holders could redeem them promptly at par under a range of conditions, including periods of market strain." — Michael Barr, Federal Reserve Governor
Four federal agencies — the Federal Reserve, Office of the Comptroller of the Currency, Federal Deposit Insurance Corporation, and Department of the Treasury — are simultaneously writing the rulebook for a $300 billion-plus stablecoin market under the GENIUS Act, the first U.S. federal law governing payment stablecoins signed July 18, 2025. None has finalized its implementing regulations. The statutory deadline for final rules was July 18, 2026. That date passed without completion.
The enforcement date — January 18, 2027 — is now 104 days away. After that date, issuing a non-permitted payment stablecoin in the United States triggers civil penalties of up to $500,000. The gap between proposed rules and final enforcement creates a compliance vacuum that affects every issuer operating in or selling to U.S. persons, including Tether ($188 billion outstanding) and Circle ($74 billion outstanding), which together hold approximately 83% of global stablecoin supply.
This report maps the four parallel rulemaking tracks, identifies the binding constraints on issuers, and examines whether the January 2027 deadline can realistically hold.
The Guiding and Establishing National Innovation for U.S. Stablecoins Act passed the Senate 68–30 on June 17, 2025, and the House 308–122 on July 17, 2025. President Trump signed it the following day. The statute defines "payment stablecoins" as digital assets pegged to a fixed monetary value, explicitly excludes them from securities classification, and creates a dual federal-state licensing structure.
Core mandates under the law:
The statute delegated implementing authority to four agencies: the Fed, OCC, FDIC, and Treasury. Each was required to finalize its regulations by July 18, 2026 — 12 months after enactment.
The parallel rulemaking process is unprecedented in digital asset regulation. Each agency governs a different slice of the stablecoin ecosystem:
| Agency | Jurisdiction | Proposed Rule Date | Status | |--------|-------------|-------------------|--------| | OCC | National banks, federal savings associations, nonbank issuers with OCC charter | February 25, 2026 | Comment period closed May 1, 2026. No final rule. | | FDIC | FDIC-supervised insured depository institutions and their subsidiaries | April 10, 2026 | Comment period closed. No final rule. | | Federal Reserve | Board-supervised payment stablecoin issuers and Fed-supervised IDIs | September 24, 2026 | 60-day comment period open. | | Treasury | State certification review; foreign issuer comparability | September 30, 2026 | Interim final rule effective upon publication. |
The OCC moved first, publishing its proposed rule in the Federal Register on March 2, 2026. The FDIC followed in April. The Fed waited until September 24 to release its two proposals. Treasury published its interim final rule on September 30 — the only binding regulation issued to date.
The Federal Reserve's September 24 proposals represent the most granular prudential framework yet proposed for stablecoin issuers. The package consists of two rules:
Proposal 1: Reserve, Capital, and Risk Management. Board-supervised permitted payment stablecoin issuers (PPSIs) must maintain reserve assets whose aggregate fair value at all times equals or exceeds the par value of outstanding payment stablecoins. Permissible reserve assets are limited to cash, deposits at Federal Reserve Banks, insured deposits at depository institutions, and U.S. Treasury securities with a remaining maturity of 93 days or fewer.
The capital framework introduces a tiered operational-risk charge:
An additional 2% capital charge applies to reserve assets held as uninsured deposit claims or undercollateralized reverse repurchase agreements.
For context: a hypothetical issuer with $188 billion outstanding — roughly Tether's current USDT supply — would face a minimum operational-risk capital requirement of approximately $2.23 billion under this schedule.
Proposal 2: Subsidiary Applications. Fed-supervised insured depository institutions seeking to issue stablecoins through subsidiaries must file an application and receive prior approval. The proposal establishes the criteria, information requirements, and review process.
Redemptions must be processed within two business days. Monthly reserve disclosures must be certified by executive officers and subject to independent audit.
The comment period runs 60 days from Federal Register publication.
The OCC's February 25 proposed rule creates a new Part 15 of 12 CFR — the first standalone federal regulatory part dedicated to payment stablecoins. The proposal covers:
The comment period closed May 1, 2026. The OCC has not published a final rule. Circle obtained its OCC bank charter on July 10, 2026, according to CNBC reporting, making it one of the first stablecoin issuers to secure the federal license.
The FDIC's April 2026 proposed rule addresses a question central to stablecoin economics: are stablecoins deposits?
The answer under the proposed rule is no. The FDIC would amend its deposit insurance regulations to explicitly prevent payment stablecoins from qualifying for pass-through deposit insurance. This draws a firm boundary: stablecoin holders are creditors of the issuer, not depositors of an insured institution.
Additional FDIC requirements:
Treasury's September 30 interim final rule is the only regulation under the GENIUS Act that is currently binding. Published in the Federal Register as document 2026-19966, it took effect upon publication.
The rule establishes the Stablecoin Certification Review Committee (SCRC), chaired by the Treasury Secretary and including the heads of the Federal Reserve and FDIC. The committee's mandate: evaluate whether state-level stablecoin regulatory regimes are "substantially similar" to federal standards.
The $10 billion threshold is the rule's operative dividing line. Issuers at or below $10 billion in consolidated outstanding stablecoin supply may operate under a certified state regime. Issuers above $10 billion are barred from the state pathway and must obtain federal licensing.
For the current market, this threshold is significant. Tether (USDT, approximately $188 billion outstanding) and Circle (USDC, approximately $74 billion) are categorically excluded from state-level regulation. Both must operate under a primary federal regulator.
The comment period on the interim rule runs through November 30, 2026. Treasury will not begin accepting state certification applications until the Paperwork Reduction Act review process concludes.
The two dominant issuers have adopted divergent compliance strategies.
Circle moved early. The company obtained an OCC bank charter in July 2026 and has been operating under federal supervision since. Circle has publicly urged the OCC to finalize strong implementing rules, positioning itself as the compliance-first issuer. With approximately $74 billion in USDC outstanding, Circle falls squarely under the federal pathway and appears operationally prepared for the January 2027 enforcement date.
Tether took a different approach. Rather than restructuring USDT — which is issued offshore by a non-U.S. entity — Tether launched USA₮ on January 27, 2026, a separate dollar-backed stablecoin designed specifically for the U.S. market. USA₮ is issued through Anchorage Digital Bank, N.A., a federally chartered institution. Reserve custody is handled by Cantor Fitzgerald. The token launched on Kraken, Crypto.com, MoonPay, OKX, and Bybit.
USDT itself remains in limbo. As of October 2026, Treasury has not made a "comparability determination" for USDT, the mechanism under the GENIUS Act by which foreign-issued stablecoins can be offered to U.S. persons. Tether has approximately two years from enactment — until mid-2027 — to secure this determination or face restrictions on U.S. market access.
The statutory architecture created a sequencing challenge. Final rules were due by July 18, 2026. Enforcement begins January 18, 2027. The 180-day gap between those dates was designed to give issuers time to comply with finalized regulations.
That gap has effectively collapsed. The OCC and FDIC closed their comment periods months ago but have not published final rules. The Fed only opened its comment period on September 24, 2026, meaning final rules cannot realistically be published before late Q1 2027 at the earliest, assuming a minimum 60-day comment period plus several months for review and finalization.
This creates three possible outcomes:
The statute itself does not provide a mechanism for delaying the January 18 date. Section 9 of the GENIUS Act states the law takes effect on the earlier of 18 months after enactment or 120 days after final implementing regulations. The 18-month clock is unconditional.
The GENIUS Act created the architecture for federal stablecoin regulation. The agencies charged with filling in the details are behind schedule. The OCC, FDIC, and Fed have collectively produced over 1,000 pages of proposed rules but zero final regulations. Treasury's interim final rule on state certification — effective upon publication — remains the only binding output.
The January 18, 2027 enforcement date is a statutory hard stop. The law does not give regulators authority to extend it. What remains uncertain is how agencies will exercise their enforcement discretion during the gap between the law's effective date and the publication of final implementing rules.
For issuers, the message is clear: the statute's core provisions — 1:1 reserves, no yield, federal licensing for large issuers — are self-executing. Compliance with those provisions is not contingent on final agency rules. What the rules will determine is the precise calibration of capital charges, reporting formats, examination schedules, and supervisory fees.
The $300 billion question is not whether regulation is coming. It arrived on July 18, 2025. The question is whether the regulatory machinery built to implement it can finish assembling before the engine is required to run.