The US Office of the Comptroller of the Currency (OCC) is the federal banking regulator and an independent bureau within the United States Department of the Treasury.
Issued an interpretative note on January 4:
- Federally regulated banks can use stablecoins to conduct payments, other activities
- could participate in blockchain networks - can participate as nodes on a blockchain and store or validate payments
The note from the OCC is here, link for more detail.,
BTC update, rallying since this news hit a couple of hours ago:
