Bottom line: A bipartisan Senate letter tells Treasury that its draft GENIUS Act rule risks turning state certification into a one-time window — shutting out states whose legislatures haven’t acted yet and concentrating stablecoin oversight at the federal level.
The Letter That Triggered the Alarm
Seven U.S. senators sent a formal letter to Treasury Secretary Scott Bessent on June 16, 2026. They argue the department’s April proposal for implementing the Guiding and Establishing National Innovation for U.S. Stablecoins (GENIUS) Act fails to define a timeline or process for ongoing state certification Senators urge Treasury ensure state authority in GENIUS application.
The lawmakers warn that silence on subsequent certifications “could be interpreted as the process being a one-time window that effectively bars future certifications.”
Signatories span both parties: Republicans Bill Hagerty (TN), Kevin Cramer (ND), Pete Ricketts (NE); Democrats Kirsten Gillibrand (NY), Angela Alsobrooks (MD), Catherine Cortez Masto (NV). Senator Cynthia Lummis (R-WY) leads the effort.
“States must be able to develop and seek certification of stablecoin regulatory regimes as demand for these charters materializes and as legislative schedules permit” Senators urge Treasury ensure state authority in GENIUS application.
Why the Certification Window Matters
The GENIUS Act, signed by President Donald Trump in July 2025, creates a federal floor for stablecoin issuers while preserving a state pathway for issuers with $10 billion or less in outstanding market value Senators urge Treasury ensure state authority in GENIUS application.
As of mid-June 2026, only three stablecoins exceed that threshold:
| Stablecoin | Issuer | Market Cap (est.) | Regulatory Tier |
|---|---|---|---|
| USDT | Tether | >$100B | Federal (OCC/Fed) |
| USDC | Circle | >$30B | Federal (OCC/Fed) |
| USDS | Sky (ex-Maker) | >$10B | Federal (OCC/Fed) |
| All others | Various | ≤$10B | State-eligible |
Source: CoinGecko data cited in congressional letter Senators urge Treasury ensure state authority in GENIUS application.
Every other issuer — including new entrants — falls under potential state supervision if their state obtains certification. That covers the vast majority of the market.
The Gap in Treasury’s Draft Rule
The Act requires states to prove their laws are “largely similar” to the federal standard before supervising eligible issuers. Treasury’s April proposal outlined an initial certification process but omitted three critical elements:
- A mechanism for subsequent certifications
- A defined review timeline
- Any re-opening schedule
That silence creates a de facto deadline. States whose legislative sessions don’t align with the federal rulemaking calendar — or that need more time to draft “largely similar” statutes — could be locked out permanently.
The public comment period closed June 2, 2026. Treasury is now drafting the final rule for the Federal Register.
Dual Banking System at Stake
The U.S. has maintained a dual banking system since the National Bank Act of 1863: national banks chartered by the OCC, state banks chartered by state regulators. The GENIUS Act explicitly mirrors this structure for stablecoins.
“Congress clearly sought to preserve the dual banking system and the crucial role of State banking agencies in supervising this market” Senators urge Treasury ensure state authority in GENIUS application.
If the final rule treats certification as a single window, states that miss it — whether due to legislative calendars, resource constraints, or political hesitation — could be permanently excluded from stablecoin oversight.
For context on how this mirrors traditional banking, see our Stablecoin Regulation Guide: Federal vs. State Pathways — zbrandco hub.
Practical Impact for Builders & Operators
The certification question determines four concrete variables for any stablecoin project:
- Which regulator you answer to — state banking department vs. federal agency (OCC/Fed)
- Capital and reserve requirements — state regimes may impose different liquidity or audit standards
- Market entry timing — if your state hasn’t certified, you face a federal-only path with higher barriers
- Interstate operability — a patchwork of certified vs. non-certified states complicates national rollout
Builder takeaway: Before incorporating or choosing a domicile, verify your state’s certification readiness. A state that misses the window forces you into federal-only compliance — typically costlier and slower. Track progress via our State Crypto Regulation Tracker 2026 — zbrandco live tracker.
What to Watch Next
- Final rule language — Will Treasury add explicit “rolling certification” language or a defined re-opening schedule?
- State legislative action — NY, WY, NE, TX have begun drafting GENIUS-aligned frameworks; their progress now carries higher stakes.
- Issuer mapping — Sub-$10B issuers should check their state-of-incorporation’s certification readiness; federal-only compliance may be costlier.
- Judicial review risk — If the final rule contradicts congressional intent, affected states or industry groups may sue.
For the legislative backstory, see GENIUS Act Explained: What the Law Actually Says — zbrandco deep dive.
FAQ: People Also Ask
What is the GENIUS Act’s state certification threshold?
Issuers with $10 billion or less in outstanding market value are eligible for state supervision if their state certifies.
Which stablecoins currently exceed the $10B threshold?
USDT, USDC, and USDS — all three are federally supervised.
What happens if a state misses the certification window?
Under Treasury’s draft rule, that state could be barred permanently from supervising stablecoin issuers.
When does Treasury publish the final rule?
No fixed date; the final rule follows the closed comment period (June 2, 2026) and Federal Register publication.
How does this affect stablecoin founders?
Your home state’s certification status becomes a go/no-go variable for regulatory strategy and compliance cost.
The Takeaway
The GENIUS Act’s state pathway was designed as a release valve — giving smaller issuers and innovative state regulators room to operate without waiting for federal bandwidth. Treasury’s draft rule risks sealing that valve shut. For anyone launching or scaling a stablecoin product in 2026, your home state’s certification status is now a go/no-go variable — not a background detail.
