The Facebook CEO is trying to woo lawmakers and regulators to approve his digital currency.
Travel firm Booking Holdings has pulled out of the Libra Association as companies involved in the digital currency face increased regulation.
Facebook has to convince regulators and potential users its currency plans are credible.
Facebook says sending money over its network will cost next to nothing. Remittance companies will be watching closely.
Here's a look at some of the agencies that may police the digital currency.