US Crypto Market Structure Bill: How It Reshapes Bitcoin's Legal Status

For over a decade, Bitcoin operated in a regulatory gray zone in the United States. The SEC claimed authority through enforcement actions. The CFTC called Bitcoin a commodity in 2015 but lacked the statutory tools to regulate spot markets. Exchanges registered as money transmitters under state law while federal oversight remained fragmented. That era is ending.

The Digital Asset Market Clarity Act (commonly called the CLARITY Act) passed the U.S. House of Representatives in July 2025 with bipartisan support, 294 to 134. The Senate Banking Committee advanced its version in May 2026, and the Senate Agriculture Committee merged its companion bill (the Digital Commodity Intermediaries Act) into a unified text in July 2026. The bill establishes, for the first time, a comprehensive federal framework that formally classifies Bitcoin as a digital commodity and divides regulatory authority between the SEC and CFTC along clear jurisdictional lines.

Even before the legislation reaches the President's desk, its effects are already visible. The SEC and CFTC issued a joint interpretive release in March 2026 classifying Bitcoin, Ether, and several other major cryptocurrencies as digital commodities. Exchanges are restructuring. Custody providers are preparing compliance programs. This article breaks down the key provisions and what they mean for Bitcoin businesses, DeFi protocols, and Layer 2 infrastructure.

What the CLARITY Act Does

The bill creates the first statutory framework for how digital assets are classified and which federal agency regulates them. It replaces the patchwork of enforcement actions, no-action letters, and informal guidance that has governed crypto markets since Bitcoin's inception.

The Digital Commodity Classification

At its core, the CLARITY Act introduces a functional test for determining whether a digital asset qualifies as a digital commodity or a digital security. The test centers on decentralization: if an asset runs on a blockchain that is "functionally decentralized" (meaning no single entity controls the network's operations, governance, or economic outcomes), the asset is classified as a digital commodity.

Bitcoin satisfies this test unambiguously. No entity controls its consensus mechanism, issuance schedule, or transaction validation. The bill explicitly treats Bitcoin as the canonical example of a digital commodity.

The classification is not binary. A token initially sold through a centralized fundraise (an ICO or similar) can later transition to digital commodity status once its underlying network meets the decentralization threshold. The bill creates a self-certification process: a blockchain project certifies its maturity, and the SEC has 60 days to contest the claim. If rejected, the project must wait 90 days before re-certifying, with a right to appeal in federal court.

Why this matters for Bitcoin: Bitcoin has always been treated as a commodity by the CFTC in practice, but without statutory backing, that classification could have been challenged. The CLARITY Act codifies Bitcoin's commodity status in federal law, giving exchanges, custodians, and Layer 2 protocols a stable legal foundation to build on.

SEC vs. CFTC Jurisdiction Split

The bill draws a clear boundary between the two agencies. The CFTC receives exclusive authority over spot trading in digital commodities. The SEC retains jurisdiction over digital securities: tokens that represent investment contracts, equity, or debt instruments, and any asset sold through a fundraise that has not yet met the decentralization test.

This resolves the jurisdictional ambiguity that led to years of Howey test litigation. Under the current framework, an exchange listing Bitcoin does not need to worry about whether the SEC might later classify it as a security. An exchange listing a newly launched token with a concentrated treasury, by contrast, must treat it as a digital security until the network decentralizes.

How the Bill Affects Exchanges

The CLARITY Act creates three new registration categories under the Commodity Exchange Act:

• Digital Commodity Exchanges (analogous to Designated Contract Markets)
• Digital Commodity Brokers (analogous to Futures Commission Merchants)
• Digital Commodity Dealers (analogous to Swap Dealers)

Any platform that facilitates spot trading in digital commodities for U.S. customers must register with the CFTC under one of these categories. This includes centralized exchanges like Coinbase, Kraken, and Gemini, all of which currently operate under state money transmitter licenses and the BitLicense in New York.

Core Principles for Registered Exchanges

Registered digital commodity exchanges must comply with core principles that mirror traditional futures market requirements:

• Listing standards and practices for new digital commodities
• Segregation of customer assets from the exchange's own funds
• Trade surveillance and market manipulation detection
• Conflicts of interest policies and disclosures
• System safeguards covering cybersecurity and operational resilience
• Reporting obligations to the CFTC

National securities exchanges and alternative trading systems (ATSs) that already hold SEC registration can also register as digital commodity exchanges with the CFTC, creating a dual-registration pathway for platforms that want to list both securities and commodities.

Practical impact: Exchanges currently operating under state-by-state money transmitter licenses will need to obtain federal CFTC registration. This is a significant compliance lift, but it also creates a single federal license that preempts the current patchwork of 50+ state requirements for digital commodity spot trading.

Custody Rules: Qualified Digital Asset Custodians

The bill establishes a new category of Qualified Digital Asset Custodian (QDAC). To qualify, a custodian must be a federally or state-regulated entity (such as a national bank, state-chartered trust company, or registered broker-dealer) or a foreign equivalent subject to comparable supervision.

Key Custody Requirements

Qualified custodians face obligations modeled on existing custodial standards under the Commodity Exchange Act:

• Strict segregation of customer digital assets from the custodian's proprietary holdings and from other customers' assets (unless commingling is explicitly authorized and disclosed)
• Exclusive control over customer assets with detailed access controls
• Prohibition on rehypothecation without explicit written customer consent
• Annual SOC-1 and SOC-2 audits
• Bankruptcy protections treating segregated holdings as priority "customer property"
• Comprehensive recordkeeping and internal controls

These rules address one of the central failures exposed by the FTX collapse in 2022, where customer funds were commingled with the exchange's own trading operations. Under the CLARITY Act, that structure would be explicitly illegal.

DeFi Protocols: Exemptions and Open Questions

The treatment of decentralized finance protocols is the most contested section of the bill. The core principle is that non-custodial software does not trigger registration requirements. Developers who publish and maintain open-source protocol code are not classified as exchanges, brokers, or dealers.

What Is Exempt

The bill carves out exemptions for DeFi activities on both the SEC and CFTC sides:

• Non-custodial protocols that facilitate peer-to-peer trading without holding user funds
• Open-source software developers and maintainers
• Frontend interfaces that connect to decentralized protocols (to the extent they facilitate digital commodity trading)

What Is Not Exempt

The September 2026 Senate revision, introduced by Senator Lummis, narrowed the DeFi provisions to spot and cash transactions and added criteria for identifying "decentralized-in-name-only" protocols that must register with the CFTC. Protocols that exercise meaningful control over user funds, set trading parameters unilaterally, or extract fees through privileged positions may not qualify for the DeFi exemption.

The exact definition of "decentralized" in this context remains unresolved. Democratic senators have pushed for tighter controls to prevent protocols from claiming the exemption while circumventing AML obligations. Industry groups counter that overly prescriptive definitions would push innovation offshore. This tension is one of the reasons the bill has stalled in the Senate.

The March 2026 SEC-CFTC Joint Guidance

While Congress debated the legislative text, the regulators moved ahead on their own. On March 11, 2026, the SEC and CFTC signed a memorandum of understanding establishing a coordination framework for digital asset oversight. Six days later, on March 17, they issued a joint interpretive release that categorized major digital assets into five buckets:

• Digital commodities (Bitcoin, Ether, Solana, and others with decentralized networks)
• Digital securities (tokens representing investment contracts)
• Digital collectibles (NFTs and similar non-fungible assets)
• Digital tools (utility tokens with specific functional uses)
• Stablecoins (governed separately under the GENIUS Act, signed into law in July 2025)

The guidance gave the market an immediate framework even without legislation. Exchanges began adjusting their listing processes, and custody providers started aligning with the anticipated QDAC standards. The SEC itself described it as a "first step" toward a clearer regulatory framework, signaling that binding rules would follow.

Legislative Status: Where Things Stand

As of October 2026, the CLARITY Act has not been signed into law. The House passed its version in July 2025. The Senate Banking Committee advanced the bill in May 2026 with a 15-to-9 vote, largely along party lines. The Senate Agriculture Committee merged its companion text in July 2026. A revised Senate bill was introduced on September 10, 2026, ahead of a procedural vote.

On September 15, 2026, the Senate held a cloture vote that failed 49 to 50, falling short of the 60 votes required to open floor debate. The bill's bipartisan support in the House did not translate into the supermajority needed in the Senate. Democratic objections centered on the DeFi exemptions, the scope of CFTC authority over spot markets, and concerns about Bank Secrecy Act compliance gaps.

Comprehensive market structure legislation is now unlikely before 2027. However, the March 2026 joint guidance, the GENIUS Act for stablecoins, and the SEC's August 2026 proposed crypto rules mean that significant regulatory infrastructure is already in place. Many provisions of the CLARITY Act are being implemented de facto through agency guidance, even as the statutory text remains stalled.

US vs. MiCA vs. UK: Comparing Global Approaches

The CLARITY Act does not exist in a vacuum. The EU's Markets in Crypto-Assets Regulation (MiCA) is fully enforced, and the UK's FCA-administered regime is finalized with an October 2027 go-live date. Each jurisdiction takes a fundamentally different approach.

Structural Differences

The EU built MiCA as a single, unified rulebook administered through a coordinated system of national regulators. Any firm authorized in one member state can serve the entire bloc. The US approach splits authority between two federal agencies (and retains some state-level requirements for non-commodity activities). The UK concentrates everything in the FCA but applies only domestically.

For Bitcoin specifically, the practical impact is similar across all three regimes: exchanges listing Bitcoin must hold appropriate licenses, custodians must segregate customer assets, and market manipulation rules apply. The differences emerge for newer assets, DeFi protocols, and stablecoins, where each jurisdiction's definitions and exemptions diverge significantly.

What Bitcoin Businesses Need to Change

Even though the CLARITY Act has not yet passed, the March 2026 guidance and the direction of legislative travel make it clear what Bitcoin businesses should prepare for. The following applies to entities serving U.S. customers.

Exchanges and Trading Platforms

• Prepare for federal CFTC registration as a Digital Commodity Exchange, Broker, or Dealer
• Implement customer asset segregation that meets the anticipated QDAC standard
• Build or enhance trade surveillance systems for market manipulation detection
• Review listing processes to distinguish digital commodities from digital securities
• Establish conflicts-of-interest policies and disclosure procedures

Custody Providers

• Assess whether current entity structure qualifies for QDAC status (federally or state-regulated financial institution)
• Implement strict segregation of customer assets with no commingling unless explicitly authorized
• Obtain SOC-1 and SOC-2 audit reports
• Review rehypothecation practices and obtain explicit written consent where permitted
• Document bankruptcy-remote treatment of customer holdings

DeFi Protocols and Interfaces

• Evaluate whether the protocol meets the decentralization criteria for the DeFi exemption
• If operating a frontend or interface, understand the scope of the interface exemption (limited to digital commodity trading)
• Protocols with governance tokens that grant control over treasury or trading parameters may need to register as intermediaries
• Monitor the Senate debate for final definitions of "decentralized"

Compliance Timeline Comparison

Implications for Bitcoin Layer 2 Protocols

The classification of Bitcoin as a digital commodity under CFTC jurisdiction has direct implications for Layer 2 protocols that facilitate Bitcoin payments and settlement.

Under the CLARITY Act's framework, protocols that operate as non-custodial infrastructure for transferring digital commodities are not required to register as exchanges or brokers. This is significant for protocols like Spark, which enables instant, self-custodial Bitcoin transfers using statechains and FROST threshold signatures. Because Spark preserves user custody (the user always holds one key in a 2-of-2 multisig), it aligns with the bill's non-custodial exemption framework.

Clear legal classification also reduces compliance uncertainty for businesses building on Bitcoin Layer 2s. A payments app using the Spark SDK to process Bitcoin transactions can now point to a statutory definition confirming that Bitcoin is a commodity, not a security. That distinction affects licensing requirements, reporting obligations, and the regulatory agency a business interacts with.

The GENIUS Act similarly provides a legal framework for stablecoins on Bitcoin. Assets like USDB, which operate on Spark, benefit from both the stablecoin legislation and the market structure bill's clarity on the underlying Bitcoin settlement layer. Together, these frameworks create a regulatory environment where Bitcoin Layer 2 payments infrastructure can operate with legal certainty rather than regulatory ambiguity.

What Comes Next

The Senate cloture failure does not mean the CLARITY Act is dead. Market structure legislation remains a priority for both parties, and the bipartisan House vote demonstrates broad political support for the core framework. Several paths forward exist:

• A revised Senate bill addressing Democratic concerns on DeFi definitions and AML coverage could reach 60 votes in a future session
• The SEC and CFTC may continue implementing the framework through guidance and rulemaking, creating de facto regulation without legislation
• A compromise bill could be attached to must-pass legislation such as an appropriations package

Regardless of the legislative timeline, the direction is clear. Bitcoin is a digital commodity. Exchanges will face federal registration. Custody will require segregation and audit. The regulatory framework that the industry has waited for is materializing, whether through statute or through agency action.

For builders and users in the Bitcoin ecosystem, the practical takeaway is to start preparing now. Explore the compliance tools and infrastructure available for digital commodity businesses, and understand how Layer 2 protocols like Spark fit within the emerging framework.

This article is for educational purposes only. It does not constitute financial or investment advice. Bitcoin and Layer 2 protocols involve technical and financial risk. Always do your own research and understand the tradeoffs before using any protocol.