On January 4, 2021, the Office of the Comptroller of the Currency issued Interpretive Letter 1174, concluding that national banks and federal savings associations could participate in independent node verification networks and use related stablecoins for legally permissible payment activities.
The interpretation placed blockchain-based settlement inside a familiar banking-law framework. The OCC said an eligible bank could validate, store and record payment transactions by operating a network node. It could also buy, sell or issue stablecoins when doing so facilitated payments, including converting dollars into a stablecoin, transferring that value across a network and converting it back into dollars.
That conclusion was significant because it addressed the legal authority of federally chartered institutions to interact directly with distributed payment infrastructure. It was not a mandate to adopt a particular blockchain, an approval of any named stablecoin or a declaration that every crypto activity was permissible.
A new rail for an established function
The OCC’s reasoning treated the technology as a new mechanism for carrying out an old banking function. Banks already processed checks, card payments, electronic transfers and electronically stored value. In the agency’s analysis, using a distributed ledger or stablecoin to transmit value did not change the underlying character of a permissible payment service.
The letter defined an independent node verification network as a shared electronic database maintained across multiple computers. Nodes could validate transactions, retain transaction history and distribute data to other participants. Stablecoins, in turn, could represent fiat-currency value on those networks. The OCC specifically distinguished this payment use from cryptocurrencies whose value fluctuated independently of a referenced currency.
The scope was narrower than some event-day descriptions suggested. Interpretive Letter 1174 applied to national banks and federal savings associations supervised by the OCC, not automatically to every U.S. bank or nonbank crypto company. It also did not displace securities law, consumer-protection rules or other legal requirements. The letter noted that some stablecoins could be securities depending on their structure and circumstances.
Why the institutional context mattered
The action followed the President’s Working Group on Financial Markets statement of December 23, 2020. That statement recognized possible efficiency, competition and inclusion benefits from stablecoin payments while emphasizing financial stability, operational resilience, user protection, sanctions compliance and controls against illicit finance.
Interpretive Letter 1174 carried that technology-neutral approach into the OCC’s banking precedent. Acting Comptroller Brian Brooks presented the letter as removing uncertainty about whether supervised banks possessed the legal authority to connect to blockchain networks as validating nodes. That was an attributable contemporaneous regulatory claim, not evidence that banks had already deployed the capability at scale.
No asset-price conclusion can be drawn from the documents. This reconstruction makes no claim about bitcoin, ether or stablecoin prices on January 4, 2021, and it does not attribute any market movement to the letter. Crypto markets traded continuously across venues, while the OCC record established a question of institutional authority rather than a measured adoption or price event.
Permission came with risk obligations
The OCC neither encouraged nor discouraged participation. It identified potential efficiency and resilience benefits but also warned of operational, fraud and liquidity risks. Banks were expected to possess sufficient technical expertise, conduct appropriate legal analysis and maintain risk management proportionate to the complexity of their services.
The letter also required compliance with applicable anti-money-laundering, counter-terrorist-financing, Bank Secrecy Act and consumer-protection obligations. It advised banks to consult OCC supervisors as appropriate, and the agency said the activities would remain subject to ordinary supervision. Permission therefore meant that the technology could be used for a permissible function—not that using it would automatically be safe, compliant or commercially successful.
Later context
On November 23, 2021, the OCC issued Interpretive Letter 1179 after reviewing its earlier crypto interpretations. That later letter retained the underlying legal conclusions but required a bank to notify its supervisory office and obtain written supervisory non-objection before beginning the covered activities. This later condition clarifies the subsequent regulatory path; it was not part of the event-day position stated on January 4, 2021.
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