When the Code Becomes the Cop: U.S. Treasury Pushes for Programmable Financial Enforcement in Crypto

The U.S. Treasury is proposing that digital asset firms embed financial enforcement directly into their code, requiring stablecoin issuers and other crypto companies to build systems where sanctions enforcement, transaction blocking and monitoring are automatic and inseparable from protocol operations.

Under a joint proposed rule from the Treasury’s Financial Crimes Enforcement Network (FinCEN) and Office of Foreign Assets Control (OFAC), digital asset firms would be required to design their systems to hardwire financial enforcement capabilities into the code itself, shifting from a reactive compliance model to one where violations are prevented in real time.

The proposal implements provisions of the Guiding and Establishing National Innovation for U.S. Stablecoins Act (GENIUS Act), which directs Treasury to treat permitted payment stablecoin issuers (PPSIs) as financial institutions under the Bank Secrecy Act (BSA) and impose anti-money laundering obligations, including the maintenance of an effective sanctions compliance program.

Stablecoin issuers, in particular, are being put on notice that they must architect systems where compliance is built into the infrastructure itself, moving beyond simply responding to sanctions or suspicious activity reports after the fact.

The rule would require PPSIs to maintain formal sanctions compliance programs, including risk assessments, internal controls, and ongoing testing, and extends liability to cases where sanctioned individuals use stablecoins in secondary market transactions, such as through smart contracts, even if the issuer is not a direct participant.

For an industry built on permissionless systems, this represents a significant reorientation, placing the responsibility on issuers to prevent prohibited use rather than merely avoiding it after the fact.

The proposed rule acknowledges that software, particularly in blockchain environments, is often designed to be immutable, and bridging the gap between fixed code and evolving sanctions lists will likely demand new architectural approaches that support both programmability and adaptability.

If finalized largely as proposed, the rule will mark a significant milestone in the maturation of the crypto sector, shifting the definition of stablecoins from speed and accessibility to their ability to operate within a tightly controlled regulatory framework.

For stablecoin issuers, compliance programs must be formalized, documented, and approved at the highest organizational levels, with dedicated officers overseeing efforts, ongoing training, and independent testing required.

The OFAC and FinCEN proposal noted that some commenters acknowledged meaningful upfront costs associated with BSA compliance, sanctions program obligations, and the GENIUS Act, particularly for new or unregulated entrants.

The sheer cost and complexity of implementing the proposed compliance measures may favor larger, well-capitalized firms with resources to build sophisticated systems, potentially leading to consolidation as smaller or experimental projects struggle to meet the standards.

At the same time, the rule may create opportunities for a new class of service providers specializing in compliance technology, such as companies focused on blockchain analytics, risk assessment, and regulatory integration.

PYMNTS Intelligence and Citi’s “Chain Reaction: Regulatory Clarity as the Catalyst for Blockchain Adoption” report found that blockchain’s next leap will be shaped by regulation, with Citi’s global head of digital assets, Ryan Rugg, stating that safety and soundness measures from traditional finance must now extend into the crypto space.