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The regulatory fog around banks and digital assets cleared slightly after the nation’s top banking regulator confirmed that national banks may pay blockchain transaction fees and hold crypto assets for operational purposes — a technical clarification that could speed institutional adoption of on-chain finance.
The Office of the Comptroller of the Currency said in an interpretive letter last week that it is explicitly outlining which crypto-asset activities are permissible for the national banks it oversees. For investors watching institutional-adoption trends, the move adds another brick to the regulatory foundation major financial institutions need before venturing further into digital assets.
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What Banks Can Actually Do Now
The OCC’s letter confirms two specific activities that national banks are authorized to undertake in the crypto space, both centered on the practical realities of operating on blockchain networks.
First, national banks can pay network fees — commonly known as gas fees — on blockchain networks to facilitate otherwise permissible banking activities, according to the interpretive letter. These are the transaction costs required to process operations on networks like Ethereum or other blockchain platforms.
Second, banks may hold crypto assets as principal on their balance sheets, but with narrow limitations. The holdings must be necessary to pay network fees for which the bank anticipates a reasonably foreseeable need, or necessary for testing crypto-asset-related platforms, whether developed internally or acquired from third parties.
This isn’t a blanket authorization for banks to become crypto trading shops. The permissions are tightly scoped around operational necessity rather than speculative investment.
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The Safe and Sound Requirement
The OCC made clear these activities must meet traditional banking standards. National banks must conduct crypto operations in a safe and sound manner and in compliance with applicable law, the letter specified.
Banks engaging in these activities will need robust risk management frameworks and compliance programs — the same regulatory expectations that apply to their traditional banking activities.

