US Treasury prepared the Federal Reserve's departure from US &
passed the laws to replace or coexist with fiat dollar.
Eventually as other nations, US will become a cashless society
utilizing CENTRALIZED blockchain system through
the Continental Public bank.
https://continentalpublicbank.com/open-an-account/.
https://steemit.com/blockchain/@euni/centralized-cashless-society-by-2020
You can check PDF files on US Treasury website
http://nationalgreatregistry.generalpostoffice.international/index.php?title=Office_of_the_Treasury_for_The_United_States_of_America&oldid=1309