OCC — National Bank Digital Asset Activities and the SAB 121 Reversal
The OCC granted the only federal bank charter to a crypto institution (Anchorage Digital, 2021) and issued landmark interpretive letters in 2020-2021 authorizing national banks to provide crypto custody, hold stablecoin reserves, and use blockchain for payment activities.
Wyoming SPDI — Special Purpose Depository Institution
The Wyoming Special Purpose Depository Institution charter creates a bank category that can hold digital assets in custody for clients without engaging in fractional reserve banking — the first US regulatory framework purpose-built for crypto asset custody.