Non-EU Regulators
Financial Crimes Enforcement Network (US) (FinCEN)
US Treasury AML enforcer — operates the federal MSB licensing regime for crypto money transmitters.
Definition
FinCEN is the US Treasury bureau enforcing the Bank Secrecy Act. Crypto exchanges operating in the US must register as Money Services Businesses (MSBs) — federal-level registration. State-level money-transmitter licensing applies in parallel.