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The relationship between banks and cryptocurrency in the United States has been as complicated as the concept of “money” itself. But today’s interpretive letter from the Office of the Comptroller of the Currency (OCC) may be changing all of that.

The OCC serves to charter, regulate and supervise national banks. Today’s OCC letter clarifies that national banks have the authority to provide fiat bank accounts and cryptocurrency custodial services to cryptocurrency businesses. This clarification from the OCC may open the doors for larger financial institutions to be more comfortable providing traditional bank accounts to cryptocurrency companies, as well as actually provide custodial services for customers’ private keys.

Custodial Services

In its letter, the OCC acknowledged the difference between custodial services for fiat money versus cryptocurrency, noting that because digital currencies exist only on the blockchain or distributed ledger, there is no physical possession of the instrument. Therefore, a bank “holding” digital currencies on behalf of a customer will take possession of the cryptographic access keys to that unit of cryptocurrency.

“From safe-deposit boxes to virtual vaults, we must ensure banks can meet the financial services needs of their customers today," said Acting Comptroller of the Currency Brian P. Brooks. "This opinion clarifies that banks can continue satisfying their customers' needs for safeguarding their most valuable assets, which today for tens of millions of Americans includes cryptocurrency."